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"PackageDescription": "90 TABLET in 1 BOTTLE, PLASTIC (16590-837-90)",
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"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Methylphenidate",
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"MarketingCategoryName": "ANDA",
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"LabelerName": "STAT RX USA LLC",
"SubstanceName": "METHYLPHENIDATE HYDROCHLORIDE",
"StrengthNumber": "5",
"StrengthUnit": "mg/1",
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"Description": "DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients."
},
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"ProprietaryName": "Methylphenidate",
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"LabelerName": "STAT RX USA LLC",
"SubstanceName": "METHYLPHENIDATE HYDROCHLORIDE",
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"Description": "DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients."
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"NDCCode": "16590-837-60",
"PackageDescription": "60 TABLET in 1 BOTTLE, PLASTIC (16590-837-60)",
"NDC11Code": "16590-0837-60",
"ProductNDC": "16590-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Methylphenidate",
"NonProprietaryName": "Methylphenidate Hydrochloride",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19970829",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA040220",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "METHYLPHENIDATE HYDROCHLORIDE",
"StrengthNumber": "5",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Central Nervous System Stimulant [EPC],Central Nervous System Stimulation [PE]",
"DEASchedule": "CII",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
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"Description": "DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients."
},
{
"NDCCode": "43353-837-60",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (43353-837-60)",
"NDC11Code": "43353-0837-60",
"ProductNDC": "43353-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Carvedilol",
"NonProprietaryName": "Carvedilol",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "20070905",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA078332",
"LabelerName": "Aphena Pharma Solutions - Tennessee, LLC",
"SubstanceName": "CARVEDILOL",
"StrengthNumber": "3.125",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Adrenergic alpha-Antagonists [MoA], Adrenergic beta1-Antagonists [MoA], Adrenergic beta2-Antagonists [MoA], alpha-Adrenergic Blocker [EPC], beta-Adrenergic Blocker [EPC]",
"Status": "Deprecated",
"LastUpdate": "2025-06-10",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20251231",
"IndicationAndUsage": "Carvedilol is an alpha/beta-adrenergic blocking agent indicated for the treatment of: : 1 Left ventricular dysfunction following myocardial infarction in clinically stable patients (1.2), 2 Hypertension (1.3).",
"Description": "Carvedilol is a nonselective β-adrenergic blocking agent with α1-blocking activity. It is (±)-1-(Carbazol-4-yloxy)-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol. Carvedilol is a racemic mixture with the following structure. Carvedilol tablets, USP are white, oval, film-coated tablets containing 3.125 mg, 6.25 mg, 12.5 mg, or 25 mg of carvedilol. Inactive ingredients consist of lactose monohydrate, colloidal silicon dioxide, crospovidone, povidone, sucrose, magnesium stearate, polyethylene glycol 400, polysorbate 80, titanium dioxide, and hypromellose.Carvedilol USP is a white to off-white powder with a molecular weight of 406.5 and a molecular formula of C24H26N2O4. It is freely soluble in dimethylsulfoxide; soluble in methylene chloride and methanol; sparingly soluble in 95% ethanol and isopropanol; slightly soluble in ethyl ether; and practically insoluble in water, gastric fluid (simulated, TS, pH 1.1), and intestinal fluid (simulated, TS without pancreatin, pH 7.5).Meets USP Dissolution Test 2."
},
{
"NDCCode": "55700-837-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (55700-837-90) ",
"NDC11Code": "55700-0837-90",
"ProductNDC": "55700-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Buspirone Hydrochloride",
"NonProprietaryName": "Buspirone Hydrochloride",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20200110",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA202330",
"LabelerName": "Quality Care Products, LLC",
"SubstanceName": "BUSPIRONE HYDROCHLORIDE",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Status": "Deprecated",
"LastUpdate": "2024-12-27",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20241231",
"StartMarketingDatePackage": "20200110",
"SamplePackage": "N",
"IndicationAndUsage": "Buspirone hydrochloride tablets are indicated for the management of anxiety disorders or the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. The efficacy of buspirone has been demonstrated in controlled clinical trials of outpatients whose diagnosis roughly corresponds to Generalized Anxiety Disorder (GAD). Many of the patients enrolled in these studies also had coexisting depressive symptoms and buspirone relieved anxiety in the presence of these coexisting depressive symptoms. The patients evaluated in these studies had experienced symptoms for periods of 1 month to over 1 year prior to the study, with an average symptom duration of 6 months. Generalized Anxiety Disorder (300.02) is described in the American Psychiatric Association's Diagnostic and Statistical Manual, III1 as follows. Generalized, persistent anxiety (of at least 1 month continual duration), manifested by symptoms from three of the four following categories: 1 Motor tension: shakiness, jitteriness, jumpiness, trembling, tension, muscle aches, fatigability, inability to relax, eyelid twitch, furrowed brow, strained face, fidgeting, restlessness, easy startle., 2 Autonomic hyperactivity: sweating, heart pounding or racing, cold, clammy hands, dry mouth, dizziness, lightheadedness, paresthesias (tingling in hands or feet), upset stomach, hot or cold spells, frequent urination, diarrhea, discomfort in the pit of the stomach, lump in the throat, flushing, pallor, high resting pulse and respiration rate., 3 Apprehensive expectation: anxiety, worry, fear, rumination, and anticipation of misfortune to self or others., 4 Vigilance and scanning: hyperattentiveness resulting in distractibility, difficulty in concentrating, insomnia, feeling \"on edge\", irritability, impatience.",
"Description": "Buspirone hydrochloride is an antianxiety agent that is not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Buspirone hydrochloride is a white crystalline, water soluble compound with a molecular weight of 422.0. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4,5]decane-7,9-dione monohydrochloride. The empirical formula C21H31N5O2.HCl is represented by the following structural formula. Buspirone hydrochloride tablets, USP for oral administration, contains 5 mg, 7.5 mg, 10 mg, 15 mg or 30 mg of buspirone hydrochloride, USP (equivalent to 4.6 mg, 6.9 mg, 9.1 mg, 13.7 mg and 27.4 mg of buspirone free base respectively). The 5 mg and 10 mg tablets are scored so they can be bisected. Thus, the 5 mg tablet can also provide a 2.5 mg dose, and the 10 mg tablet can provide a 5 mg dose. The 15 mg tablets are scored such that they may be bisected or trisected. Thus, a single 15 mg tablet can provide the following doses: 15 mg (entire tablet), 10 mg (two thirds of a tablet), 7.5 mg (one-half of a tablet), or 5 mg (one-third of a tablet). The 30 mg tablets are scored such that they may be bisected or trisected. A single 30 mg tablet can provide the following doses: 30 mg (entire tablet), 20 mg (two-thirds of a tablet), 15 mg (one-half of a tablet), or 10 mg (one-third of a tablet). Buspirone hydrochloride tablets, USP contain the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate."
},
{
"NDCCode": "59651-837-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (59651-837-90) ",
"NDC11Code": "59651-0837-90",
"ProductNDC": "59651-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Ezetimibe And Simvastatin",
"NonProprietaryName": "Ezetimibe And Simvastatin",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20240301",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA200082",
"LabelerName": "Aurobindo Pharma Limited",
"SubstanceName": "EZETIMIBE; SIMVASTATIN",
"StrengthNumber": "10; 40",
"StrengthUnit": "mg/1; mg/1",
"Pharm_Classes": "Decreased Cholesterol Absorption [PE], Dietary Cholesterol Absorption Inhibitor [EPC], HMG-CoA Reductase Inhibitor [EPC], Hydroxymethylglutaryl-CoA Reductase Inhibitors [MoA]",
"Status": "Active",
"LastUpdate": "2024-10-24",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20240301",
"SamplePackage": "N",
"IndicationAndUsage": "Ezetimibe and simvastatin tablets. Ezetimibe and simvastatin tablet is a combination of simvastatin and ezetimibe indicated:. Simvastatin. Simvastatin, when used as a component of ezetimibe and simvastatin tablets, is indicated to reduce the risk of total mortality by reducing risk of coronary heart disease death, non-fatal myocardial infarction and stroke, and the need for coronary and non-coronary revascularization procedures in adults with established coronary heart disease, cerebrovascular disease, peripheral vascular disease, and/or diabetes, who are at high risk of coronary heart disease events.",
"Description": "Ezetimibe and simvastatin tablets contain ezetimibe, a dietary cholesterol absorption inhibitor, and simvastatin, an HMG-CoA reductase inhibitor. The chemical name of ezetimibe is 1-(4-fluorophenyl)-3(R)-[3-(4-fluorophenyl)-3(S)-hydroxypropyl]-4(S)-(4-hydroxyphenyl)-2-azetidinone. The molecular formula is C24H21F2NO3 and its molecular weight is 409.4. Ezetimibe, USP is a white powder that is freely to very soluble in ethanol, methanol, and acetone and practically insoluble in water. Its structural formula is. Simvastatin, an inactive lactone, is hydrolyzed to the corresponding β-hydroxyacid form, which is an inhibitor of HMG-CoA reductase. Simvastatin is butanoic acid, 2,2-dimethyl-,1,2,3,7,8,8a-hexahydro-3,7-dimethyl-8-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)-ethyl]-1-naphthalenyl ester, [1S-[1α,3α,7β,8β(2S*,4S*),-8aβ]]. The molecular formula of simvastatin is C25H38O5 and its molecular weight is 418.57. Simvastatin, USP is a white or almost white powder that is practically insoluble in water and freely soluble in chloroform, methanol and ethanol. Its structural formula is. Ezetimibe and simvastatin are available for oral use as tablets containing 10 mg of ezetimibe USP, and 10 mg, 20 mg, 40 mg or 80 mg of simvastatin USP, providing for the following combinations: 10 mg/10 mg, 10 mg/20 mg, 10 mg/40 mg or 10 mg/80 mg. Each tablet contains the following inactive ingredients: ascorbic acid, butylated hydroxyanisole, citric acid monohydrate, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose and sodium lauryl sulfate."
},
{
"NDCCode": "61786-837-19",
"PackageDescription": "90 TABLET in 1 BOTTLE (61786-837-19) ",
"NDC11Code": "61786-0837-19",
"ProductNDC": "61786-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Rosuvastatin Calcium",
"NonProprietaryName": "Rosuvastatin Calcium",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20160822",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA079167",
"LabelerName": "REMEDYREPACK INC.",
"SubstanceName": "ROSUVASTATIN CALCIUM",
"StrengthNumber": "40",
"StrengthUnit": "mg/1",
"Pharm_Classes": "HMG-CoA Reductase Inhibitor [EPC],Hydroxymethylglutaryl-CoA Reductase Inhibitors [MoA]",
"Status": "Deprecated",
"LastUpdate": "2018-12-02",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20191231",
"StartMarketingDatePackage": "20160822",
"SamplePackage": "N"
},
{
"NDCCode": "61919-837-90",
"PackageDescription": "90 CAPSULE in 1 BOTTLE (61919-837-90) ",
"NDC11Code": "61919-0837-90",
"ProductNDC": "61919-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Celecoxib",
"NonProprietaryName": "Celecoxib",
"DosageFormName": "CAPSULE",
"RouteName": "ORAL",
"StartMarketingDate": "20190725",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA204590",
"LabelerName": "Direct_Rx",
"SubstanceName": "CELECOXIB",
"StrengthNumber": "200",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Anti-Inflammatory Agents, Non-Steroidal [CS], Cyclooxygenase Inhibitors [MoA], Nonsteroidal Anti-inflammatory Drug [EPC]",
"Status": "Deprecated",
"LastUpdate": "2025-01-01",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20241231",
"StartMarketingDatePackage": "20190725",
"SamplePackage": "N",
"IndicationAndUsage": "Celecoxib capsules are indicated. 1.1 Osteoarthritis. For the management of the signs and symptoms of OA [see Clinical Studies (14.1)]. 1.2 Rheumatoid Arthritis. For the management of the signs and symptoms of RA [see Clinical Studies (14.2)]. 1.3 Juvenile Rheumatoid Arthritis. For the management of the signs and symptoms of JRA in patients 2 years and older [see Clinical Studies (14.3)]. 1.4 Ankylosing Spondylitis. For the management of the signs and symptoms of AS [see Clinical Studies (14.4)]. 1.5 Acute Pain. For the management of acute pain in adults [see Clinical Studies (14.5)]. 1.6 Primary Dysmenorrhea. For the management of primary dysmenorrhea [see Clinical Studies (14.5)].",
"Description": "Celecoxib is a nonsteroidal anti-inflammatory drug, available as capsules containing 50 mg, 100 mg, 200 mg and 400 mg celecoxib USP for oral administration. The chemical name is 4-[5-(4-methylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl] benzenesulfonamide and is a diaryl-substituted pyrazole. The molecular weight is 381.38. Its molecular formula is C17H14F3N3O2S, and it has the following chemical structure:. [structure]. Celecoxib USP is a white to off-white powder with a pKa of 11.1 (sulfonamide moiety). Celecoxib USP is hydrophobic (log P is 3.5) and is practically insoluble in aqueous media at physiological pH range. The inactive ingredients in celecoxib capsules include: gelatin, lactose monohydrate, magnesium stearate, povidone, sodium lauryl sulfate, hydroxypropyl cellulose, crospovidone and titanium dioxide. The imprinting ink of capsule shell of the 50 mg capsule contains the following inactive ingredients: shellac, propylene glycol, sodium hydroxide, titanium dioxide, povidone and FD&C Red#40 Aluminum Lake- E129. The imprinting ink of capsule shell of the 100 mg capsule contains the following inactive ingredients: shellac, propylene glycol, strong ammonia solution and FD&C Blue#2 Aluminum Lake-E132. The imprinting ink of capsule shell of the 200 mg capsule contains the following inactive ingredients: shellac, propylene glycol, strong ammonia solution and yellow iron oxide. The imprinting ink of capsule shell of the 400 mg capsule contains the following inactive ingredients: shellac, propylene glycol, sodium hydroxide, povidone, titanium dioxide, FD&C Blue#1 Aluminum Lake- E133 and FD&C Yellow#5 Aluminum Lake-E102."
},
{
"NDCCode": "62135-837-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE (62135-837-90) ",
"NDC11Code": "62135-0837-90",
"ProductNDC": "62135-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Fenofibrate",
"NonProprietaryName": "Fenofibrate",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "20190211",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA209660",
"LabelerName": "Chartwell RX, LLC",
"SubstanceName": "FENOFIBRATE",
"StrengthNumber": "54",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Peroxisome Proliferator Receptor alpha Agonist [EPC]",
"Status": "Active",
"LastUpdate": "2024-07-11",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20240705",
"SamplePackage": "N",
"Description": "Fenofibrate, USP is a lipid regulating agent available as tablets for oral administration. Each tablet contains 54 mg or 160 mg of fenofibrate. The chemical name for fenofibrate is 2-[4-(4-chlorobenzoyl) phenoxy]-2-methyl-propanoic acid, 1-methylethyl ester with the following structural formula. The empirical formula is C 20H 21O 4Cl and the molecular weight is 360.83; Fenofibrate, USP is very soluble in methylene chloride; slightly soluble in alcohol; practically insoluble in water. The melting point is 79 to 82°C. Fenofibrate, USP is a white or almost white crystalline powder which is stable under ordinary conditions. Inactive Ingredients. Each Fenofibrate Tablet, USP contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, polyethylene glycol, polyvinyl alcohol, povidone, sodium lauryl sulfate, sodium stearyl fumarate, talc, and titanium dioxide. Fenofibrate Tablets, USP meets USP Dissolution Test 3."
},
{
"NDCCode": "63187-837-90",
"PackageDescription": "90 TABLET, DELAYED RELEASE in 1 BOTTLE (63187-837-90) ",
"NDC11Code": "63187-0837-90",
"ProductNDC": "63187-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Pantoprazole Sodium",
"NonProprietaryName": "Pantoprazole",
"DosageFormName": "TABLET, DELAYED RELEASE",
"RouteName": "ORAL",
"StartMarketingDate": "20160620",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA205119",
"LabelerName": "Proficient Rx LP",
"SubstanceName": "PANTOPRAZOLE SODIUM",
"StrengthNumber": "20",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Proton Pump Inhibitor [EPC], Proton Pump Inhibitors [MoA]",
"Status": "Active",
"LastUpdate": "2022-06-01",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20170501",
"SamplePackage": "N",
"IndicationAndUsage": "Pantoprazole sodium delayed-release tablets, USP are indicated for.",
"Description": "The active ingredient in pantoprazole sodium delayed-release tablets, USP is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1H-benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is C16H14F2N3NaO4S x 1.5 H2O, with a molecular weight of 432.4. The structural formula is. Pantoprazole sodium, USP sesquihydrate is a white to off-white crystalline powder and is racemic. Pantoprazole has weakly basic and acidic properties. Pantoprazole sodium, USP sesquihydrate is freely soluble in water, very slightly soluble in phosphate buffer at pH 7.4, and practically insoluble in n-hexane. The stability of the compound in aqueous solution is pH-dependent. The rate of degradation increases with decreasing pH. At ambient temperature, the degradation half-life is approximately 2.8 hours at pH 5 and approximately 220 hours at pH 7.8. Pantoprazole sodium, USP is supplied as a delayed-release tablet, available in two strengths (20 mg and 40 mg). Each pantoprazole sodium delayed-release tablet, USP contains 45.1 mg or 22.56 mg of pantoprazole sodium, USP sesquihydrate (equivalent to 40 mg or 20 mg pantoprazole, respectively) with the following inactive ingredients: ammonium hydroxide, crospovidone, hydroxyl propyl cellulose, hypromellose, iron oxide black, iron oxide yellow, mannitol, methacrylic acid copolymer dispersion, polyethylene glycol, polyvinyl alcohol, povidone, propylene glycol, shellac, sodium carbonate, sodium hydroxide, sodium stearyl fumarate, talc, titanium dioxide and triethyl citrate. Pantoprazole sodium delayed-release tablets, USP (40 mg and 20 mg) complies with USP dissolution test 2."
},
{
"NDCCode": "65862-837-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE (65862-837-90) ",
"NDC11Code": "65862-0837-90",
"ProductNDC": "65862-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amlodipine, Valsartan And Hydrochlorothiazide",
"NonProprietaryName": "Amlodipine, Valsartan And Hydrochlorothiazide",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "20171219",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA206180",
"LabelerName": "Aurobindo Pharma Limited",
"SubstanceName": "AMLODIPINE BESYLATE; VALSARTAN; HYDROCHLOROTHIAZIDE",
"StrengthNumber": "10; 160; 25",
"StrengthUnit": "mg/1; mg/1; mg/1",
"Pharm_Classes": "Angiotensin 2 Receptor Antagonists [MoA], Angiotensin 2 Receptor Blocker [EPC], Calcium Channel Antagonists [MoA], Calcium Channel Blocker [EPC], Cytochrome P450 3A Inhibitors [MoA], Dihydropyridine Calcium Channel Blocker [EPC], Dihydropyridines [CS], Increased Diuresis [PE], Thiazide Diuretic [EPC], Thiazides [CS]",
"Status": "Active",
"LastUpdate": "2024-05-20",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20171219",
"SamplePackage": "N",
"IndicationAndUsage": "Amlodipine, valsartan and hydrochlorothiazide tablets are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes, including amlodipine, hydrochlorothiazide, and the ARB class to which valsartan principally belongs. There are no controlled trials demonstrating risk reduction with amlodipine, valsartan and hydrochlorothiazide tablets. Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than 1 drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC). Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly. Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (e.g., patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal. Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy. Limitation of Use. Amlodipine, valsartan and hydrochlorothiazide tablets are not indicated for the initial therapy of hypertension [see Dosage and Administration (2)].",
"Description": "Amlodipine, valsartan and hydrochlorothiazide tablets USP are a fixed combination of amlodipine, valsartan, and hydrochlorothiazide. Amlodipine, valsartan and hydrochlorothiazide tablets USP contain the besylate salt of amlodipine, a dihydropyridine calcium channel blocker (CCB). Amlodipine besylate, USP is a white or almost white powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate’s chemical name is 3-Ethyl 5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(o-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulfonate; its structural formula is. Its molecular formula is C20H25ClN2O5C6H6O3S and its molecular weight is 567.1. Valsartan, USP is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT1 receptor subtype. Valsartan, USP is a white, fine hygroscopic powder, soluble in ethanol and methanol and slightly soluble in water. Valsartan’s chemical name is N-(1-oxopentyl)-N-[[2′-(1H-tetrazol-5-yl) [1,1′-biphenyl]-4-yl]methyl]-L-valine; its structural formula is. Its molecular formula is C24H29N5O3 and its molecular weight is 435.5. Hydrochlorothiazide, USP is a white or practically white, practically odorless, crystalline powder. It is slightly soluble in water; freely soluble in sodium hydroxide solution, in n-butylamine, and in dimethylformamide; sparingly soluble in methanol; and insoluble in ether, in chloroform, and in dilute mineral acids. Hydrochlorothiazide is chemically described as 6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Hydrochlorothiazide is a thiazide diuretic. Its molecular formula is C7H8ClN3O4S2, its molecular weight is 297.73, and its structural formula is. Amlodipine, valsartan and hydrochlorothiazide is available as film-coated tablets containing amlodipine besylate USP (6.9 mg or 13.9 mg, equivalent to 5 mg or 10 mg of amlodipine respectively), with valsartan USP 160 mg or 320 mg, and hydrochlorothiazide USP 12.5 mg or 25 mg, providing for the following available combinations: 5 mg/160 mg/12.5 mg, 10 mg/160 mg/12.5 mg, 5 mg/160 mg/25 mg, 10 mg/160 mg/25 mg, and 10 mg/320 mg/25 mg. The inactive ingredients for all strengths of the tablets include colloidal silicon dioxide, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, pregelatinized starch (maize), sodium starch glycolate, talc, and titanium dioxide. Additionally, the 10 mg/160 mg/12.5 mg strength contains red iron oxide and yellow iron oxide; the 5 mg/160 mg/25 mg, 10 mg/160 mg/25 mg and 10 mg/320 mg/25 mg strengths contain yellow iron oxide. USP Organic Impurities Test pending."
},
{
"NDCCode": "69097-837-05",
"PackageDescription": "90 TABLET in 1 BOTTLE (69097-837-05) ",
"NDC11Code": "69097-0837-05",
"ProductNDC": "69097-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amlodipine Besylate",
"NonProprietaryName": "Amlodipine Besylate",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20160701",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA077955",
"LabelerName": "Cipla USA Inc.",
"SubstanceName": "AMLODIPINE BESYLATE",
"StrengthNumber": "5",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Calcium Channel Antagonists [MoA], Dihydropyridine Calcium Channel Blocker [EPC], Dihydropyridines [CS]",
"Status": "Active",
"LastUpdate": "2020-10-23",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20160701",
"SamplePackage": "N",
"IndicationAndUsage": "Amlodipine besylate, USP is a calcium channel blocker and may be used alone or in combination with other antihypertensive and antianginal agents for the treatment of: 1 Hypertension (1.1)Amlodipine besylate tablets, USP are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions.",
"Description": "Amlodipine besylate, USP is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate, USP is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C20H25CIN2O5C6H6O3S, and its structural formula is. Amlodipine besylate, USP is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white tablets equivalent to 2.5 mg, 5 mg, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, USP each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate."
},
{
"NDCCode": "71205-837-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (71205-837-90) ",
"NDC11Code": "71205-0837-90",
"ProductNDC": "71205-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Fluphenazine Hydrochloride",
"NonProprietaryName": "Fluphenazine Hydrochloride",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "20220801",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA215848",
"LabelerName": "Proficient Rx LP",
"SubstanceName": "FLUPHENAZINE HYDROCHLORIDE",
"StrengthNumber": "1",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Phenothiazine [EPC], Phenothiazines [CS]",
"Status": "Active",
"LastUpdate": "2023-02-28",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20230221",
"SamplePackage": "N",
"IndicationAndUsage": "Fluphenazine hydrochloride tablets are indicated in the management of manifestations of psychotic disorders. Fluphenazine hydrochloride has not been shown effective in the management of behavioral complications in patients with mental retardation.",
"Description": "Fluphenazine hydrochloride is a trifluoromethyl phenothiazine derivative intended for the management of schizophrenia. The chemical designation is 4-[3-[2-(Trifluoromethyl) phenothiazin-10-yl] propyl]-1-piperazineethanol dihydrochloride. The structural formula is represented below. Fluphenazine Hydrochloride Tablets, USP, for oral administration, contain 1 mg, 2.5 mg, 5 mg, or 10 mg fluphenazine hydrochloride, USP per tablet. Each tablet also contains FD&C Blue No. 1 Aluminum Lake (2.5 mg and 5 mg tablet), FD&C Blue No. 2 Aluminum Lake (2.5 mg tablet), FD&C Red No. 3 Aluminum Lake (5 mg tablet), FD&C Yellow No. 5 Aluminum Lake (5 mg tablet), FD&C Yellow No. 6 Aluminum Lake (10 mg tablet), lactose monohydrate, hypromellos, microcrystalline cellulose, magnesium stearate, polyethylene glycol 3350, polyvinyl alcohol, purified water, talc and titanium dioxide."
},
{
"NDCCode": "71610-837-60",
"PackageDescription": "90 TABLET, EXTENDED RELEASE in 1 BOTTLE (71610-837-60) ",
"NDC11Code": "71610-0837-60",
"ProductNDC": "71610-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Metformin Hydrochloride",
"NonProprietaryName": "Metformin Hydrochloride",
"DosageFormName": "TABLET, EXTENDED RELEASE",
"RouteName": "ORAL",
"StartMarketingDate": "20130301",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA201991",
"LabelerName": "Aphena Pharma Solutions - Tennessee, LLC",
"SubstanceName": "METFORMIN HYDROCHLORIDE",
"StrengthNumber": "500",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Biguanide [EPC], Biguanides [CS]",
"Status": "Active",
"LastUpdate": "2024-06-07",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20240531",
"SamplePackage": "N",
"IndicationAndUsage": "Metformin hydrochloride extended-release tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.",
"Description": "Metformin hydrochloride extended-release tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below:. Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4H 11N 5 HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK aof metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contains 500 mg of metformin hydrochloride, which is equivalent to 389.93 mg metformin base. Metformin hydrochloride extended-release tablets USP, 500 mg contain the inactive ingredients carboxymethylcellulose sodium, hypromellose and magnesium stearate. Metformin Hydrochloride Extended-Release Tablets, USP meets USP Dissolution Test 3."
},
{
"NDCCode": "76420-837-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (76420-837-90) ",
"NDC11Code": "76420-0837-90",
"ProductNDC": "76420-837",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Gabapentin",
"NonProprietaryName": "Gabapentin",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20211001",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA214957",
"LabelerName": "Asclemed USA, Inc.",
"SubstanceName": "GABAPENTIN",
"StrengthNumber": "800",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Decreased Central Nervous System Disorganized Electrical Activity [PE]",
"Status": "Active",
"LastUpdate": "2025-05-23",
"PackageNdcExcludeFlag": "N",
"ProductNdcExcludeFlag": "N",
"ListingRecordCertifiedThrough": "20261231",
"StartMarketingDatePackage": "20240807",
"SamplePackage": "N",
"IndicationAndUsage": "Gabapentin tablets are indicated for: 1 Management of postherpetic neuralgia in adults, 2 Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy.",
"Description": "The active ingredient in gabapentin tablets is gabapentin, USP which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9H 17NO 2and the molecular weight is 171.24. The structural formula of gabapentin is:. Gabapentin, USP is a white to off-white crystalline solid with a pK a1of 3.7 and a pK a2of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: mannitol, hydroxypropyl cellulose, crospovidone, talc, silicon dioxide, glyceryl dibehenate, and magnesium stearate."
},
{
"NDCCode": "16590-808-90",
"PackageDescription": "90 TABLET in 1 BOTTLE, PLASTIC (16590-808-90)",
"NDC11Code": "16590-0808-90",
"ProductNDC": "16590-808",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Propranolol",
"NonProprietaryName": "Propranolol Hydrochloride",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19860101",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA070175",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "PROPRANOLOL HYDROCHLORIDE",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Adrenergic beta-Antagonists [MoA],beta-Adrenergic Blocker [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"Description": "Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32\", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32\", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32\", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32\", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018."
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"NDCCode": "16590-808-30",
"PackageDescription": "30 TABLET in 1 BOTTLE, PLASTIC (16590-808-30)",
"NDC11Code": "16590-0808-30",
"ProductNDC": "16590-808",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Propranolol",
"NonProprietaryName": "Propranolol Hydrochloride",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19860101",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA070175",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "PROPRANOLOL HYDROCHLORIDE",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Adrenergic beta-Antagonists [MoA],beta-Adrenergic Blocker [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"Description": "Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32\", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32\", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32\", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32\", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018."
},
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"NDCCode": "16590-808-60",
"PackageDescription": "60 TABLET in 1 BOTTLE, PLASTIC (16590-808-60)",
"NDC11Code": "16590-0808-60",
"ProductNDC": "16590-808",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Propranolol",
"NonProprietaryName": "Propranolol Hydrochloride",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19860101",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA070175",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "PROPRANOLOL HYDROCHLORIDE",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Adrenergic beta-Antagonists [MoA],beta-Adrenergic Blocker [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
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"Description": "Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32\", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32\", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32\", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32\", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018."
},
{
"NDCCode": "16590-005-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (16590-005-90)",
"NDC11Code": "16590-0005-90",
"ProductNDC": "16590-005",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Alprazolam",
"NonProprietaryName": "Alprazolam",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20110325",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA074112",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "ALPRAZOLAM",
"StrengthNumber": ".5",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Benzodiazepine [EPC],Benzodiazepines [Chemical/Ingredient]",
"DEASchedule": "CIV",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Alprazolam tablets are indicated for the management of anxiety disorder (a condition corresponding most closely to the APA Diagnostic and Statistical Manual [DSM-III-R] diagnosis of generalized anxiety disorder) or the short-term relief of symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. Generalized anxiety disorder is characterized by unrealistic or excessive anxiety and worry (apprehensive expectation) about two or more life circumstances, for a period of six months or longer, during which the person has been bothered more days than not by these concerns. At least 6 of the following 18 symptoms are often present in these patients: Motor Tension (trembling, twitching, or feeling shaky; muscle tension, aches, or soreness; restlessness; easy fatigability); Autonomic Hyperactivity (shortness of breath or smothering sensations; palpitations or accelerated heart rate; sweating, or cold clammy hands; dry mouth; dizziness or light-headedness; nausea, diarrhea, or other abdominal distress; flushes or chills; frequent urination; trouble swallowing or ‘lump in throat’); Vigilance and Scanning (feeling keyed up or on edge; exaggerated startle response; difficulty concentrating or ‘mind going blank’ because of anxiety; trouble falling or staying asleep; irritability). These symptoms must not be secondary to another psychiatric disorder or caused by some organic factor. Anxiety associated with depression is responsive to alprazolam.",
"Description": "Alprazolam is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is. Alprazolam is a white to off-white crystalline powder, which is soluble in alcohol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet, for oral administration, contains 0.25, 0.5, or 1 mg of alprazolam. Inactive ingredients: docusate sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and sodium benzoate. Additionally, the 0.5 mg also contains FD & C Yellow #6 Aluminum Lake, and the 1 mg also contains FD & C Blue #2 Aluminum Lake."
},
{
"NDCCode": "16590-006-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (16590-006-90)",
"NDC11Code": "16590-0006-90",
"ProductNDC": "16590-006",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Alprazolam",
"NonProprietaryName": "Alprazolam",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "20110325",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA074112",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "ALPRAZOLAM",
"StrengthNumber": "1",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Benzodiazepine [EPC],Benzodiazepines [Chemical/Ingredient]",
"DEASchedule": "CIV",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Alprazolam tablets are indicated for the management of anxiety disorder (a condition corresponding most closely to the APA Diagnostic and Statistical Manual [DSM-III-R] diagnosis of generalized anxiety disorder) or the short-term relief of symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. Generalized anxiety disorder is characterized by unrealistic or excessive anxiety and worry (apprehensive expectation) about two or more life circumstances, for a period of six months or longer, during which the person has been bothered more days than not by these concerns. At least 6 of the following 18 symptoms are often present in these patients: Motor Tension (trembling, twitching, or feeling shaky; muscle tension, aches, or soreness; restlessness; easy fatigability); Autonomic Hyperactivity (shortness of breath or smothering sensations; palpitations or accelerated heart rate; sweating, or cold clammy hands; dry mouth; dizziness or light-headedness; nausea, diarrhea, or other abdominal distress; flushes or chills; frequent urination; trouble swallowing or ‘lump in throat’); Vigilance and Scanning (feeling keyed up or on edge; exaggerated startle response; difficulty concentrating or ‘mind going blank’ because of anxiety; trouble falling or staying asleep; irritability). These symptoms must not be secondary to another psychiatric disorder or caused by some organic factor. Anxiety associated with depression is responsive to alprazolam.",
"Description": "Alprazolam is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is. Alprazolam is a white to off-white crystalline powder, which is soluble in alcohol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet, for oral administration, contains 0.25, 0.5, or 1 mg of alprazolam. Inactive ingredients: docusate sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and sodium benzoate. Additionally, the 0.5 mg also contains FD & C Yellow #6 Aluminum Lake, and the 1 mg also contains FD & C Blue #2 Aluminum Lake."
},
{
"NDCCode": "16590-008-90",
"PackageDescription": "90 CAPSULE in 1 BOTTLE (16590-008-90)",
"NDC11Code": "16590-0008-90",
"ProductNDC": "16590-008",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amantadine Hydrochloride",
"NonProprietaryName": "Amantadine Hydrochloride",
"DosageFormName": "CAPSULE",
"RouteName": "ORAL",
"StartMarketingDate": "19870218",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA071293",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "AMANTADINE HYDROCHLORIDE",
"StrengthNumber": "100",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Influenza A M2 Protein Inhibitor [EPC],M2 Protein Inhibitors [MoA]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Amantadine hydrochloride capsules are indicated for the prophylaxis and treatment of signs and symptoms of infection caused by various strains of influenza A virus. Amantadine hydrochloride capsules are also indicated in the treatment of parkinsonism and drug-induced extrapyramidal reactions.",
"Description": "Amantadine hydrochloride is designated chemically as 1-adamantanamine hydrochloride. Its molecular weight is 187.71 with a molecular formula C10H18NCl. It has the following structural formula. Amantadine hydrochloride is a stable white or nearly white crystalline powder, freely soluble in water and soluble in alcohol and in chloroform. Amantadine hydrochloride has pharmacological actions as both an anti-Parkinson and an antiviral drug. Amantadine hydrochloride is available as 100 mg capsules for oral administration. Inactive ingredients: corn starch, croscarmellose sodium, ethylcellulose, FD&C Blue #1, FD&C Red #40, gelatin, magnesium stearate, methylparaben, microcrystalline cellulose, pregelatinized starch, propylparaben, sodium lauryl sulfate and titanium dioxide."
},
{
"NDCCode": "16590-009-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE (16590-009-90)",
"NDC11Code": "16590-0009-90",
"ProductNDC": "16590-009",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Ambien",
"NonProprietaryName": "Zolpidem Tartrate",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "19930401",
"MarketingCategoryName": "NDA",
"ApplicationNumber": "NDA019908",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "ZOLPIDEM TARTRATE",
"StrengthNumber": "5",
"StrengthUnit": "mg/1",
"Pharm_Classes": "gamma-Aminobutyric Acid-ergic Agonist [EPC],GABA A Agonists [MoA],Pyridines [Chemical/Ingredient],Central Nervous System Depression [PE]",
"DEASchedule": "CIV",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Ambien (zolpidem tartrate) is indicated for the short-term treatment of insomnia characterized by difficulties with sleep initiation. Ambien has been shown to decrease sleep latency for up to 35 days in controlled clinical studies [see Clinical Studies (14)]. The clinical trials performed in support of efficacy were 4–5 weeks in duration with the final formal assessments of sleep latency performed at the end of treatment.",
"Description": "Ambien (zolpidem tartrate) is a non-benzodiazepine hypnotic of the imidazopyridine class and is available in 5 mg and 10 mg strength tablets for oral administration. Chemically, zolpidem is N,N,6-trimethyl-2-p-tolylimidazo[1,2-a] pyridine-3-acetamide L-(+)-tartrate (2:1). It has the following structure. Zolpidem tartrate is a white to off-white crystalline powder that is sparingly soluble in water, alcohol, and propylene glycol. It has a molecular weight of 764.88. Each Ambien tablet includes the following inactive ingredients: hydroxypropyl methylcellulose, lactose, magnesium stearate, micro-crystalline cellulose, polyethylene glycol, sodium starch glycolate, and titanium dioxide. The 5 mg tablet also contains FD&C Red No. 40, iron oxide colorant, and polysorbate 80."
},
{
"NDCCode": "16590-011-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-011-90)",
"NDC11Code": "16590-0011-90",
"ProductNDC": "16590-011",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amitriptyline Hydrochloride",
"NonProprietaryName": "Amitriptyline Hydrochloride",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "19970911",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA040218",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "AMITRIPTYLINE HYDROCHLORIDE",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Tricyclic Antidepressant [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.",
"Description": "Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake."
},
{
"NDCCode": "16590-012-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-012-90)",
"NDC11Code": "16590-0012-90",
"ProductNDC": "16590-012",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amitriptyline Hydrochloride",
"NonProprietaryName": "Amitriptyline Hydrochloride",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "19970911",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA040218",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "AMITRIPTYLINE HYDROCHLORIDE",
"StrengthNumber": "25",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Tricyclic Antidepressant [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.",
"Description": "Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake."
},
{
"NDCCode": "16590-013-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-013-90)",
"NDC11Code": "16590-0013-90",
"ProductNDC": "16590-013",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amitriptyline Hydrochloride",
"NonProprietaryName": "Amitriptyline Hydrochloride",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "19970911",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA040218",
"LabelerName": "STAT Rx USA LLC",
"SubstanceName": "AMITRIPTYLINE HYDROCHLORIDE",
"StrengthNumber": "50",
"StrengthUnit": "mg/1",
"Pharm_Classes": "Tricyclic Antidepressant [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.",
"Description": "Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake."
},
{
"NDCCode": "16590-019-90",
"PackageDescription": "90 TABLET, FILM COATED in 1 BOTTLE (16590-019-90)",
"NDC11Code": "16590-0019-90",
"ProductNDC": "16590-019",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Amoxicillin And Clavulanate Potassium",
"NonProprietaryName": "Amoxicillin And Clavulanate Potassium",
"DosageFormName": "TABLET, FILM COATED",
"RouteName": "ORAL",
"StartMarketingDate": "20110125",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA065101",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "AMOXICILLIN; CLAVULANATE POTASSIUM",
"StrengthNumber": "500; 125",
"StrengthUnit": "mg/1; mg/1",
"Pharm_Classes": "beta Lactamase Inhibitor [EPC],beta Lactamase Inhibitors [MoA]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Amoxicillin and clavulanate potassium tablets are indicated in the treatment of infections caused by susceptible strains of the designated organisms in the conditions listed below.",
"Description": "Amoxicillin and clavulanate potassium tablets are an oral antibacterial combination consisting of the semisynthetic antibiotic amoxicillin and the β-lactamase inhibitor, clavulanate potassium (the potassium salt of clavulanic acid). Amoxicillin is an analog of ampicillin, derived from the basic penicillin nucleus, 6-aminopenicillanic acid. Chemically, amoxicillin is ( 2S,5R,6R)-6-[(R)-(-)-2-Amino-2-(p-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate and has the following structural formula. C 16H19N3O5S·3H2O M.W. 419.46. Clavulanic acid is produced by the fermentation of Streptomyces clavuligerus. It is a β-lactam structurally related to the penicillins and possesses the ability to inactivate a wide variety of β-lactamases by blocking the active sites of these enzymes. Clavulanic acid is particularly active against the clinically important plasmid-mediated β-lactamases frequently responsible for transferred drug resistance to penicillins and cephalosporins. Chemically, clavulanate potassium is potassium (Z)-(2R,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]-heptane-2-carboxylate, and has the following structural formula. C 8H8KNO5 M.W. 237.25. Each tablet contains 500 mg or 875 mg amoxicillin as the trihydrate and 125 mg clavulanic acid as the potassium salt. Each amoxicillin and clavulanate potassium tablet contains 0.63 mEq potassium."
},
{
"NDCCode": "16590-022-90",
"PackageDescription": "90 TABLET in 1 BOTTLE, PLASTIC (16590-022-90)",
"NDC11Code": "16590-0022-90",
"ProductNDC": "16590-022",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Acetaminophen, Butalbital And Caffeine",
"NonProprietaryName": "Acetaminophen, Butalbital And Caffeine",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19880216",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA089536",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "ACETAMINOPHEN; BUTALBITAL; CAFFEINE",
"StrengthNumber": "325; 50; 40",
"StrengthUnit": "mg/1; mg/1; mg/1",
"Pharm_Classes": "Barbiturate [EPC],Barbiturates [Chemical/Ingredient],Central Nervous System Stimulant [EPC],Central Nervous System Stimulation [PE],Methylxanthine [EPC],Xanthines [Chemical/Ingredient]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Butalbital, acetaminophen and caffeine tablets are indicated for the relief of the symptom complex of tension (or muscle contraction) headache. Evidence supporting the efficacy and safety of this combination product in the treatment of multiple recurrent headaches is unavailable. Caution in this regard is required because butalbital is habit-forming and potentially abusable.",
"Description": "Each tablet, for oral administration, contains. Butalbital, USP..................50 mg. Acetaminophen.................325 mg. Caffeine, USP...................40 mg. In addition, each tablet contains the following inactive ingredients: FD and C Lake Blue #1, Magnesium Stearate, Microcrystalline Cellulose, Colloidal Silicon Dioxide, and Sodium Starch Glycolate. Butalbital (5-allyl-5-isobutylbarbituric acid), a white, odorless, crystalline powder having a slightly bitter taste, is a short to intermediate-acting barbiturate. It has the following structural formula. Acetaminophen (4'-hydroxyacetanilide), a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula."
},
{
"NDCCode": "16590-023-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (16590-023-90)",
"NDC11Code": "16590-0023-90",
"ProductNDC": "16590-023",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Acetaminophen And Codeine",
"NonProprietaryName": "Acetaminophen And Codeine Phosphate",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19880930",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA089805",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "ACETAMINOPHEN; CODEINE PHOSPHATE",
"StrengthNumber": "300; 30",
"StrengthUnit": "mg/1; mg/1",
"DEASchedule": "CIII",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Acetaminophen and codeine phosphate tablets are indicated for the relief of mild to moderately severe pain.",
"Description": "Acetaminophen and codeine is supplied in tablet form for oral administration. Acetaminophen, 4'-hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula. Codeine phosphate, 7,8-didehydro-4,5α-epoxy-3-methoxy-17methylmorphinan-6α-ol phosphate (1:1) (salt) hemihydrate, a white crystalline powder, is a narcotic analgesic and antitussive. It has the following structural formula. Each 300 mg/30 mg Acetaminophen and Codeine Phosphate Tablet contains: Acetaminophen ......................................................................................................300 mg Codeine Phosphate ..................................................................................................30 mg. Each 300 mg/60 mg Acetaminophen and Codeine Phosphate Tablet contains: Acetaminophen ......................................................................................................300 mg Codeine Phosphate ..................................................................................................60 mg."
},
{
"NDCCode": "16590-026-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (16590-026-90)",
"NDC11Code": "16590-0026-90",
"ProductNDC": "16590-026",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Baclofen",
"NonProprietaryName": "Baclofen",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19910918",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA072824",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "BACLOFEN",
"StrengthNumber": "10",
"StrengthUnit": "mg/1",
"Pharm_Classes": "GABA A Agonists [MoA],GABA B Agonists [MoA],gamma-Aminobutyric Acid-ergic Agonist [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Baclofen is useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen treatment will aid in restoring residual function. Baclofen may also be of some value in patients with spinal cord injuries and other spinal cord diseases. Baclofen is not indicated in the treatment of skeletal muscle spasm resulting from rheumatic disorders. The efficacy of baclofen in stroke, cerebral palsy, and Parkinson’s disease has not been established and, therefore, it is not recommended for these conditions.",
"Description": "Baclofen USP is a muscle relaxant and antispastic, available as 10 mg and 20 mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. The structural formula is represented below. BACLOFEN STRUCTURE IIMAGE. Baclofen Tablets USP 10 mg and 20 mg contain the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone and starch (corn)."
},
{
"NDCCode": "16590-027-90",
"PackageDescription": "90 TABLET in 1 BOTTLE (16590-027-90)",
"NDC11Code": "16590-0027-90",
"ProductNDC": "16590-027",
"ProductTypeName": "HUMAN PRESCRIPTION DRUG",
"ProprietaryName": "Baclofen",
"NonProprietaryName": "Baclofen",
"DosageFormName": "TABLET",
"RouteName": "ORAL",
"StartMarketingDate": "19910918",
"MarketingCategoryName": "ANDA",
"ApplicationNumber": "ANDA072828",
"LabelerName": "STAT RX USA LLC",
"SubstanceName": "BACLOFEN",
"StrengthNumber": "20",
"StrengthUnit": "mg/1",
"Pharm_Classes": "GABA A Agonists [MoA],GABA B Agonists [MoA],gamma-Aminobutyric Acid-ergic Agonist [EPC]",
"Status": "Deprecated",
"LastUpdate": "2018-02-07",
"ProductNdcExcludeFlag": "E",
"ListingRecordCertifiedThrough": "20171231",
"IndicationAndUsage": "Baclofen is useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen treatment will aid in restoring residual function. Baclofen may also be of some value in patients with spinal cord injuries and other spinal cord diseases. Baclofen is not indicated in the treatment of skeletal muscle spasm resulting from rheumatic disorders. The efficacy of baclofen in stroke, cerebral palsy, and Parkinson’s disease has not been established and, therefore, it is not recommended for these conditions.",
"Description": "Baclofen USP is a muscle relaxant and antispastic, available as 10 mg and 20 mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. The structural formula is represented below. BACLOFEN STRUCTURE IIMAGE. Baclofen Tablets USP 10 mg and 20 mg contain the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone and starch (corn)."
}
]
}
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<ProprietaryName>Methylphenidate</ProprietaryName>
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<Description>DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients.</Description>
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<Description>DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients.</Description>
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<Description>DESCRIPTION. Methylphenidate hydrochloride USP, is a mild central nervous system (CNS) stimulant, available as tablets of 5, 10, and 20 mg for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is. METHYLPHENIDATE 5MG STRUCTURE IMAGE. Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular formula is C14H19NO2HCl, and its molecular weight is 269.77. Inactive Ingredients. Methylphenidate hydrochloride tablets: colloidal silicon dioxide, compressible sugar, lactose monohydrate and magnesium stearate. Additionally, the 5 mg contains FD and C Blue #2 and FD and C Red #40; the 10 mg contains FD and C Blue #2 and D and C Yellow #10; and the 20 mg contains FD and C Yellow #6. Methylphenidate is a mild central nervous system stimulant. The mode of action in man is not completely understood, but methylphenidate presumably activates the brain stem arousal system and cortex to produce its stimulant effect. There is neither specific evidence which clearly establishes the mechanism whereby methylphenidate produces its mental and behavioral effects in children, nor conclusive evidence regarding how these effects relate to the condition of the central nervous system. Methylphenidate hydrochloride in the extended-release tablets is more slowly but as extensively absorbed as in the regular tablets. Relative bioavailability of the extended-release tablet compared to the methylphenidate hydrochloride tablet, measured by the urinary excretion of methylphenidate hydrochloride major metabolite (α-phenyl-2-piperidine acetic acid) was 105% (49%-168%) in children and 101% (85%-152%) in adults. The time to peak rate in children was 4.7 hours (1.3-8.2 hours) for the extended-release tablets and 1.9 hours (0.3-4.4 hours) for the tablets. An average of 67% of extended-release tablet dose was excreted in children as compared to 86% in adults. In a clinical study involving adult subjects who received extended-release tablets, plasma concentrations of methylphenidate hydrochloride’s major metabolite appeared to be greater in females than in males. No gender differences were observed for methylphenidate hydrochloride plasma concentration in the same subjects. Attention Deficit Disorders (previously known as Minimal Brain Dysfunction in Children). Other terms being used to describe the behavioral syndrome below include: Hyperkinetic Child Syndrome, Minimal Brain Damage, Minimal Cerebral Dysfunction, Minor Cerebral Dysfunction. Methylphenidate hydrochloride is indicated as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. The diagnosis of this syndrome should not be made with finality when these symptoms are only of comparatively recent origin. Nonlocalizing (soft) neurological signs, learning disability, and abnormal EEG may or may not be present, and a diagnosis of central nervous system dysfunction may or may not be warranted. Specific etiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but of special psychological, educational, and social resources. Characteristics commonly reported include: chronic history of short attention span, distractibility, emotional lability, impulsivity, and moderate-to-severe hyperactivity; minor neurological signs and abnormal EEG. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the child and not solely on the presence of one or more of these characteristics. Drug treatment is not indicated for all children with this syndrome. Stimulants are not intended for use in the child who exhibits symptoms secondary to environmental factors and/or primary psychiatric disorders, including psychosis. Appropriate educational placement is essential and psychosocial intervention is generally necessary. When remedial measures alone are insufficient, the decision to prescribe stimulant medication will depend upon the physician’s assessment of the chronicity and severity of the child’s symptoms. Marked anxiety, tension, and agitation are contraindications to methylphenidate hydrochloride, since the drug may aggravate these symptoms. Methylphenidate is contraindicated also in patients known to be hypersensitive to the drug, in patients with glaucoma, and in patients with motor tics or with a family history or diagnosis of Tourette’s syndrome. Methylphenidate is contraindicated during treatment with monoamine oxidase inhibitors, and also within a minimum of 14 days following discontinuation of a monoamine oxidase inhibitor (hypertensive crises may result). Sudden Death and Pre-Existing Structural Cardiac Abnormalities or Other Serious Heart Problems. Children and Adolescents. Sudden death has been reported in association with CNS stimulant treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, stimulant products generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug. Adults. Sudden death, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Adults with such abnormalities should also generally not be treated with stimulant drugs. Hypertension and Other Cardiovascular Conditions. Stimulant medications cause a modest increase in average blood pressure (about 2-4 mmHg) and average heart rate (about 3-6 bpm), and individuals may have larger increases. While the mean changes alone would not be expected to have short-term consequences, all patients should be monitored for larger changes in heart rate and blood pressure. Caution is indicated in treating patients whose underlying medical conditions might be compromised by increases in blood pressure or heart rate, e.g., those with pre-existing hypertension, heart failure, recent myocardial infarction, or ventricular arrhythmia. Assessing Cardiovascular Status in Patients being Treated with Stimulant Medications. Children, adolescents, or adults who are being considered for treatment with stimulant medications should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during stimulant treatment should undergo a prompt cardiac evaluation. Pre-Existing Psychosis. Administration of stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Bipolar Illness. Particular care should be taken in using stimulants to treat ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in such patients. Prior to initiating treatment with a stimulant, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression. Emergence of New Psychotic or Manic Symptoms. Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by stimulants at usual doses. If such symptoms occur, consideration should be given to a possible causal role of the stimulant, and discontinuation of treatment may be appropriate. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.1% (4 patients with events out of 3,482 exposed to methylphenidate or amphetamine for several weeks at usual doses) of stimulant-treated patients compared to 0 in placebo-treated patients. Aggression. Aggressive behavior or hostility is often observed in children and adolescents with ADHD, and has been reported in clinical trials and the postmarketing experience of some medications indicated for the treatment of ADHD. Although there is no systematic evidence that stimulants cause aggressive behavior or hostility, patients beginning treatment for ADHD should be monitored for the appearance of or worsening of aggressive behavior or hostility. Careful follow-up of weight and height in children ages 7 to 10 years who were randomized to either methylphenidate or non-medication treatment groups over 14 months, as well as in naturalistic subgroups of newly methylphenidate-treated and non-medication treated children over 36 months (to the ages of 10 to 13 years), suggests that consistently medicated children (i.e., treatment for 7 days per week throughout the year) have a temporary slowing in growth rate (on average, a total of about 2 cm less growth in height and 2.7 kg less growth in weight over 3 years), without evidence of growth rebound during this period of development. Published data are inadequate to determine whether chronic use of amphetamines may cause a similar suppression of growth, however, it is anticipated that they likely have this effect as well. Therefore, growth should be monitored during treatment with stimulants, and patients who are not growing or gaining height or weight as expected may need to have their treatment interrupted. There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizures, in patients with prior EEG abnormalities in absence of seizures, and, very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Difficulties with accommodation and blurring of vision have been reported with stimulant treatment. Methylphenidate should not be used in children under 6 years, since safety and efficacy in this age group have not been established. Patients with an element of agitation may react adversely; discontinue therapy if necessary. Periodic CBC, differential, and platelet counts are advised during prolonged therapy. Drug treatment is not indicated in all cases of this behavioral syndrome and should be considered only in light of the complete history and evaluation of the child. The decision to prescribe methylphenidate should depend on the physician’s assessment of the chronicity and severity of the child’s symptoms and their appropriateness for his/her age. Prescription should not depend solely on the presence of one or more of the behavioral characteristics. When these symptoms are associated with acute stress reactions, treatment with methylphenidate is usually not indicated. Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with methylphenidate and should counsel them in its appropriate use. A patient Medication Guide is available for methylphenidate hydrochloride tablets. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document. Methylphenidate should not be used in patients being treated (currently or within the proceeding two weeks) with MAO Inhibitors (see CONTRAINDICATIONS, Monoamine Oxidase Inhibitors). Because of possible effects on blood pressure, methylphenidate should be used cautiously with pressor agents. Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Methylphenidate is metabolized primarily to ritalinic acid by de-esterification and not through oxidative pathways. Human pharmacologic studies have shown that racemic methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and tricyclic drugs (e.g., imipramine, clomipramine, desipramine). Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentration (or, in case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. Serious adverse events have been reported in concomitant use with clonidine, although no causality for the combination has been established. The safety of using methylphenidate in combination with clonidine or other centrally acting alpha-2-agonists has not been systematically evaluated. In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas and, in males only, an increase in hepatoblastomas, at a daily dose of approximately 60 mg/kg/day. This dose is approximately 30 times and 4 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. Hepatoblastoma is a relatively rare rodent malignant tumor type. There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors, and the significance of these results to humans is unknown. Methylphenidate did not cause any increases in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 22 times and 5 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60-74 mg/kg/day of methylphenidate. Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay or in the in vitro mouse lymphoma cell forward mutation assay. Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary (CHO) cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week Continuous Breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 80-fold and 8-fold the highest recommended dose on a mg/kg and mg/m2 basis, respectively. Pregnancy Category C. In studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Teratogenic effects (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 40 times the maximum recommended human dose (MRHD) on a mg/m2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (11 times the MRHD on a mg/m2 basis). There was no evidence of specific teratogenic activity in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (7 times the MRHD on a mg/m2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (2 times the MRHD on a mg/m2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (4 times the MRHD on a mg/m2 basis), but no other effects on postnatal development were observed. The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (equal to the MRHD on a mg/m2 basis). Adequate and well-controlled studies in pregnant women have not been conducted. Methylphenidate should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if methylphenidate is administered to a nursing woman. Methylphenidate should not be used in children under six years of age (see WARNINGS). In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (Postnatal Day 7) and continuing through sexual maturity (Postnatal Week 10). When these animals were tested as adults (Postnatal Weeks 13-14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 6 times the maximum recommended human dose [MRHD] on a mg/m2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (12 times the MRHD on a mg/m2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (half the MRHD on a mg/m2 basis). The clinical significance of the long-term behavioral effects observed in rats is unknown. Nervousness and insomnia are the most common adverse reactions but are usually controlled by reducing dosage and omitting the drug in the afternoon or evening. Other reactions include hypersensitivity (including skin rash, urticaria, fever, arthralgia, exfoliative dermatitis, erythema multiforme with histopathological findings of necrotizing vasculitis, and thrombocytopenic purpura); anorexia; nausea; dizziness; palpitations; headache; dyskinesia; drowsiness; blood pressure and pulse changes, both up and down; tachycardia; angina; cardiac arrhythmia; abdominal pain; weight loss during prolonged therapy. There have been rare reports of Tourette’s syndrome. Toxic psychosis has been reported. Although a definite causal relationship has not been established, the following have been reported in patients taking this drug: instances of abnormal liver function, ranging from transaminase elevation to hepatic coma; isolated cases of cerebral arteritis and/or occlusion; leukopenia and/or anemia; transient depressed mood; aggressive behavior; a few instances of scalp hair loss. Very rare reports of neuroleptic malignant syndrome (NMS) have been received, and, in most of these, patients were concurrently receiving therapies associated with NMS. In a single report, a ten-year-old boy who had been taking methylphenidate for approximately 18 months experienced an NMS-like event within 45 minutes of ingesting his first dose of venlafaxine. It is uncertain whether this case represented a drug-drug interaction, a response to either drug alone, or some other cause. In children, loss of appetite, abdominal pain, weight loss during prolonged therapy, insomnia, and tachycardia may occur more frequently; however, any of the other adverse reactions listed above may also occur. Dosage should be individualized according to the needs and responses of the patient. Adults. Tablets: Administer in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Average dosage is 20 to 30 mg daily. Some patients may require 40 to 60 mg daily. In others, 10 to 15 mg daily will be adequate. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. Children (6 years and over). Methylphenidate hydrochloride tablets should be initiated in small doses, with gradual weekly increments. Daily dosage above 60 mg is not recommended. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued. Tablets: Start with 5 mg twice daily (before breakfast and lunch) with gradual increments of 5 to 10 mg weekly. Extended-Release Tablets: Methylphenidate hydrochloride extended-release tablets have a duration of action of approximately 8 hours. Therefore, the extended-release tablets may be used in place of the immediate-release tablets when the 8-hour dosage of methylphenidate hydrochloride extended-release tablets corresponds to the titrated 8-hour dosage of the immediate-release tablets. Methylphenidate hydrochloride extended-release tablets must be swallowed whole and never crushed or chewed. If paradoxical aggravation of symptoms or other adverse effects occur, reduce dosage, or, if necessary, discontinue the drug. Methylphenidate should be periodically discontinued to assess the child’s condition. Improvement may be sustained when the drug is either temporarily or permanently discontinued. Drug treatment should not and need not be indefinite and usually may be discontinued after puberty. Signs and symptoms of acute overdosage, resulting principally from overstimulation of the central nervous system and from excessive sympathomimetic effects, may include the following: vomiting, agitation, tremors, hyperreflexia, muscle twitching, convulsions (may be followed by coma), euphoria, confusion, hallucinations, delirium, sweating, flushing, headache, hyperpyrexia, tachycardia, palpitations, cardiac arrhythmias, hypertension, mydriasis, and dryness of mucous membranes. Consult with a Certified Poison Control Center regarding treatment for up-to-date guidance and advice. Treatment consists of appropriate supportive measures. The patient must be protected against self-injury and against external stimuli that would aggravate overstimulation already present. Gastric contents may be evacuated by gastric lavage. In the presence of severe intoxication, use a carefully titrated dosage of a short-acting barbiturate before performing gastric lavage. Other measures to detoxify the gut include administration of activated charcoal and a cathartic. Intensive care must be provided to maintain adequate circulation and respiratory exchange; external cooling procedures may be required for hyperpyrexia. Efficacy of peritoneal dialysis or extracorporeal hemodialysis for methylphenidate overdosage has not been established. Methylphenidate Hydrochloride Tablets USP are available as follows. 5 mg: Round, purple, unscored, imprinted DAN 5 and 5882 supplied in bottles of 100. 10 mg: Round, green, scored, imprinted DAN 10 and 5883 supplied in bottles of 100. 20 mg: Round, peach, scored, imprinted DAN 20 and 5884 supplied in bottles of 100. Protect from light. Dispense in a tight, light-resistant container, as defined in the USP, with a child-resistant closure. Do not store above 30°C (86°F). Manufactured by:Watson Laboratories, Inc.Corona, CA 92880 USA. Distributed by:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: January 2009. 0109B. Methylphenidate Hydrochloride Tablets USP CII. Read the Medication Guide that comes with methylphenidate hydrochloride tablets before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your or your child’s treatment with methylphenidate hydrochloride tablets. What are methylphenidate hydrochloride tablets?. Methylphenidate hydrochloride tablets are a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies. Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. Methylphenidate hydrochloride tablets should not be taken if you or your child: 1 are very anxious, tense, or agitated, 2 have an eye problem called glaucoma, 3 have tics or Tourette’s syndrome, or a family history of Tourette’s syndrome. Tics are hard to control repeated movements or sounds., 4 are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI., 5 are allergic to anything in methylphenidate hydrochloride tablets. See the end of this Medication Guide for a complete list of ingredients.</Description>
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<Description>Carvedilol is a nonselective β-adrenergic blocking agent with α1-blocking activity. It is (±)-1-(Carbazol-4-yloxy)-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol. Carvedilol is a racemic mixture with the following structure. Carvedilol tablets, USP are white, oval, film-coated tablets containing 3.125 mg, 6.25 mg, 12.5 mg, or 25 mg of carvedilol. Inactive ingredients consist of lactose monohydrate, colloidal silicon dioxide, crospovidone, povidone, sucrose, magnesium stearate, polyethylene glycol 400, polysorbate 80, titanium dioxide, and hypromellose.Carvedilol USP is a white to off-white powder with a molecular weight of 406.5 and a molecular formula of C24H26N2O4. It is freely soluble in dimethylsulfoxide; soluble in methylene chloride and methanol; sparingly soluble in 95% ethanol and isopropanol; slightly soluble in ethyl ether; and practically insoluble in water, gastric fluid (simulated, TS, pH 1.1), and intestinal fluid (simulated, TS without pancreatin, pH 7.5).Meets USP Dissolution Test 2.</Description>
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<IndicationAndUsage>Buspirone hydrochloride tablets are indicated for the management of anxiety disorders or the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. The efficacy of buspirone has been demonstrated in controlled clinical trials of outpatients whose diagnosis roughly corresponds to Generalized Anxiety Disorder (GAD). Many of the patients enrolled in these studies also had coexisting depressive symptoms and buspirone relieved anxiety in the presence of these coexisting depressive symptoms. The patients evaluated in these studies had experienced symptoms for periods of 1 month to over 1 year prior to the study, with an average symptom duration of 6 months. Generalized Anxiety Disorder (300.02) is described in the American Psychiatric Association's Diagnostic and Statistical Manual, III1 as follows. Generalized, persistent anxiety (of at least 1 month continual duration), manifested by symptoms from three of the four following categories: 1 Motor tension: shakiness, jitteriness, jumpiness, trembling, tension, muscle aches, fatigability, inability to relax, eyelid twitch, furrowed brow, strained face, fidgeting, restlessness, easy startle., 2 Autonomic hyperactivity: sweating, heart pounding or racing, cold, clammy hands, dry mouth, dizziness, lightheadedness, paresthesias (tingling in hands or feet), upset stomach, hot or cold spells, frequent urination, diarrhea, discomfort in the pit of the stomach, lump in the throat, flushing, pallor, high resting pulse and respiration rate., 3 Apprehensive expectation: anxiety, worry, fear, rumination, and anticipation of misfortune to self or others., 4 Vigilance and scanning: hyperattentiveness resulting in distractibility, difficulty in concentrating, insomnia, feeling "on edge", irritability, impatience.</IndicationAndUsage>
<Description>Buspirone hydrochloride is an antianxiety agent that is not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Buspirone hydrochloride is a white crystalline, water soluble compound with a molecular weight of 422.0. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4,5]decane-7,9-dione monohydrochloride. The empirical formula C21H31N5O2.HCl is represented by the following structural formula. Buspirone hydrochloride tablets, USP for oral administration, contains 5 mg, 7.5 mg, 10 mg, 15 mg or 30 mg of buspirone hydrochloride, USP (equivalent to 4.6 mg, 6.9 mg, 9.1 mg, 13.7 mg and 27.4 mg of buspirone free base respectively). The 5 mg and 10 mg tablets are scored so they can be bisected. Thus, the 5 mg tablet can also provide a 2.5 mg dose, and the 10 mg tablet can provide a 5 mg dose. The 15 mg tablets are scored such that they may be bisected or trisected. Thus, a single 15 mg tablet can provide the following doses: 15 mg (entire tablet), 10 mg (two thirds of a tablet), 7.5 mg (one-half of a tablet), or 5 mg (one-third of a tablet). The 30 mg tablets are scored such that they may be bisected or trisected. A single 30 mg tablet can provide the following doses: 30 mg (entire tablet), 20 mg (two-thirds of a tablet), 15 mg (one-half of a tablet), or 10 mg (one-third of a tablet). Buspirone hydrochloride tablets, USP contain the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate.</Description>
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<NDCCode>59651-837-90</NDCCode>
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<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Ezetimibe And Simvastatin</ProprietaryName>
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<Pharm_Classes>Decreased Cholesterol Absorption [PE], Dietary Cholesterol Absorption Inhibitor [EPC], HMG-CoA Reductase Inhibitor [EPC], Hydroxymethylglutaryl-CoA Reductase Inhibitors [MoA]</Pharm_Classes>
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<IndicationAndUsage>Ezetimibe and simvastatin tablets. Ezetimibe and simvastatin tablet is a combination of simvastatin and ezetimibe indicated:. Simvastatin. Simvastatin, when used as a component of ezetimibe and simvastatin tablets, is indicated to reduce the risk of total mortality by reducing risk of coronary heart disease death, non-fatal myocardial infarction and stroke, and the need for coronary and non-coronary revascularization procedures in adults with established coronary heart disease, cerebrovascular disease, peripheral vascular disease, and/or diabetes, who are at high risk of coronary heart disease events.</IndicationAndUsage>
<Description>Ezetimibe and simvastatin tablets contain ezetimibe, a dietary cholesterol absorption inhibitor, and simvastatin, an HMG-CoA reductase inhibitor. The chemical name of ezetimibe is 1-(4-fluorophenyl)-3(R)-[3-(4-fluorophenyl)-3(S)-hydroxypropyl]-4(S)-(4-hydroxyphenyl)-2-azetidinone. The molecular formula is C24H21F2NO3 and its molecular weight is 409.4. Ezetimibe, USP is a white powder that is freely to very soluble in ethanol, methanol, and acetone and practically insoluble in water. Its structural formula is. Simvastatin, an inactive lactone, is hydrolyzed to the corresponding β-hydroxyacid form, which is an inhibitor of HMG-CoA reductase. Simvastatin is butanoic acid, 2,2-dimethyl-,1,2,3,7,8,8a-hexahydro-3,7-dimethyl-8-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)-ethyl]-1-naphthalenyl ester, [1S-[1α,3α,7β,8β(2S*,4S*),-8aβ]]. The molecular formula of simvastatin is C25H38O5 and its molecular weight is 418.57. Simvastatin, USP is a white or almost white powder that is practically insoluble in water and freely soluble in chloroform, methanol and ethanol. Its structural formula is. Ezetimibe and simvastatin are available for oral use as tablets containing 10 mg of ezetimibe USP, and 10 mg, 20 mg, 40 mg or 80 mg of simvastatin USP, providing for the following combinations: 10 mg/10 mg, 10 mg/20 mg, 10 mg/40 mg or 10 mg/80 mg. Each tablet contains the following inactive ingredients: ascorbic acid, butylated hydroxyanisole, citric acid monohydrate, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose and sodium lauryl sulfate.</Description>
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<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Celecoxib capsules are indicated. 1.1 Osteoarthritis. For the management of the signs and symptoms of OA [see Clinical Studies (14.1)]. 1.2 Rheumatoid Arthritis. For the management of the signs and symptoms of RA [see Clinical Studies (14.2)]. 1.3 Juvenile Rheumatoid Arthritis. For the management of the signs and symptoms of JRA in patients 2 years and older [see Clinical Studies (14.3)]. 1.4 Ankylosing Spondylitis. For the management of the signs and symptoms of AS [see Clinical Studies (14.4)]. 1.5 Acute Pain. For the management of acute pain in adults [see Clinical Studies (14.5)]. 1.6 Primary Dysmenorrhea. For the management of primary dysmenorrhea [see Clinical Studies (14.5)].</IndicationAndUsage>
<Description>Celecoxib is a nonsteroidal anti-inflammatory drug, available as capsules containing 50 mg, 100 mg, 200 mg and 400 mg celecoxib USP for oral administration. The chemical name is 4-[5-(4-methylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl] benzenesulfonamide and is a diaryl-substituted pyrazole. The molecular weight is 381.38. Its molecular formula is C17H14F3N3O2S, and it has the following chemical structure:. [structure]. Celecoxib USP is a white to off-white powder with a pKa of 11.1 (sulfonamide moiety). Celecoxib USP is hydrophobic (log P is 3.5) and is practically insoluble in aqueous media at physiological pH range. The inactive ingredients in celecoxib capsules include: gelatin, lactose monohydrate, magnesium stearate, povidone, sodium lauryl sulfate, hydroxypropyl cellulose, crospovidone and titanium dioxide. The imprinting ink of capsule shell of the 50 mg capsule contains the following inactive ingredients: shellac, propylene glycol, sodium hydroxide, titanium dioxide, povidone and FD&C Red#40 Aluminum Lake- E129. The imprinting ink of capsule shell of the 100 mg capsule contains the following inactive ingredients: shellac, propylene glycol, strong ammonia solution and FD&C Blue#2 Aluminum Lake-E132. The imprinting ink of capsule shell of the 200 mg capsule contains the following inactive ingredients: shellac, propylene glycol, strong ammonia solution and yellow iron oxide. The imprinting ink of capsule shell of the 400 mg capsule contains the following inactive ingredients: shellac, propylene glycol, sodium hydroxide, povidone, titanium dioxide, FD&C Blue#1 Aluminum Lake- E133 and FD&C Yellow#5 Aluminum Lake-E102.</Description>
</NDC>
<NDC>
<NDCCode>62135-837-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE (62135-837-90) </PackageDescription>
<NDC11Code>62135-0837-90</NDC11Code>
<ProductNDC>62135-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Fenofibrate</ProprietaryName>
<NonProprietaryName>Fenofibrate</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20190211</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA209660</ApplicationNumber>
<LabelerName>Chartwell RX, LLC</LabelerName>
<SubstanceName>FENOFIBRATE</SubstanceName>
<StrengthNumber>54</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Peroxisome Proliferator Receptor alpha Agonist [EPC]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2024-07-11</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20240705</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<Description>Fenofibrate, USP is a lipid regulating agent available as tablets for oral administration. Each tablet contains 54 mg or 160 mg of fenofibrate. The chemical name for fenofibrate is 2-[4-(4-chlorobenzoyl) phenoxy]-2-methyl-propanoic acid, 1-methylethyl ester with the following structural formula. The empirical formula is C 20H 21O 4Cl and the molecular weight is 360.83; Fenofibrate, USP is very soluble in methylene chloride; slightly soluble in alcohol; practically insoluble in water. The melting point is 79 to 82°C. Fenofibrate, USP is a white or almost white crystalline powder which is stable under ordinary conditions. Inactive Ingredients. Each Fenofibrate Tablet, USP contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, polyethylene glycol, polyvinyl alcohol, povidone, sodium lauryl sulfate, sodium stearyl fumarate, talc, and titanium dioxide. Fenofibrate Tablets, USP meets USP Dissolution Test 3.</Description>
</NDC>
<NDC>
<NDCCode>63187-837-90</NDCCode>
<PackageDescription>90 TABLET, DELAYED RELEASE in 1 BOTTLE (63187-837-90) </PackageDescription>
<NDC11Code>63187-0837-90</NDC11Code>
<ProductNDC>63187-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Pantoprazole Sodium</ProprietaryName>
<NonProprietaryName>Pantoprazole</NonProprietaryName>
<DosageFormName>TABLET, DELAYED RELEASE</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20160620</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA205119</ApplicationNumber>
<LabelerName>Proficient Rx LP</LabelerName>
<SubstanceName>PANTOPRAZOLE SODIUM</SubstanceName>
<StrengthNumber>20</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Proton Pump Inhibitor [EPC], Proton Pump Inhibitors [MoA]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2022-06-01</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20170501</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Pantoprazole sodium delayed-release tablets, USP are indicated for.</IndicationAndUsage>
<Description>The active ingredient in pantoprazole sodium delayed-release tablets, USP is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1H-benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is C16H14F2N3NaO4S x 1.5 H2O, with a molecular weight of 432.4. The structural formula is. Pantoprazole sodium, USP sesquihydrate is a white to off-white crystalline powder and is racemic. Pantoprazole has weakly basic and acidic properties. Pantoprazole sodium, USP sesquihydrate is freely soluble in water, very slightly soluble in phosphate buffer at pH 7.4, and practically insoluble in n-hexane. The stability of the compound in aqueous solution is pH-dependent. The rate of degradation increases with decreasing pH. At ambient temperature, the degradation half-life is approximately 2.8 hours at pH 5 and approximately 220 hours at pH 7.8. Pantoprazole sodium, USP is supplied as a delayed-release tablet, available in two strengths (20 mg and 40 mg). Each pantoprazole sodium delayed-release tablet, USP contains 45.1 mg or 22.56 mg of pantoprazole sodium, USP sesquihydrate (equivalent to 40 mg or 20 mg pantoprazole, respectively) with the following inactive ingredients: ammonium hydroxide, crospovidone, hydroxyl propyl cellulose, hypromellose, iron oxide black, iron oxide yellow, mannitol, methacrylic acid copolymer dispersion, polyethylene glycol, polyvinyl alcohol, povidone, propylene glycol, shellac, sodium carbonate, sodium hydroxide, sodium stearyl fumarate, talc, titanium dioxide and triethyl citrate. Pantoprazole sodium delayed-release tablets, USP (40 mg and 20 mg) complies with USP dissolution test 2.</Description>
</NDC>
<NDC>
<NDCCode>65862-837-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE (65862-837-90) </PackageDescription>
<NDC11Code>65862-0837-90</NDC11Code>
<ProductNDC>65862-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amlodipine, Valsartan And Hydrochlorothiazide</ProprietaryName>
<NonProprietaryName>Amlodipine, Valsartan And Hydrochlorothiazide</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20171219</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA206180</ApplicationNumber>
<LabelerName>Aurobindo Pharma Limited</LabelerName>
<SubstanceName>AMLODIPINE BESYLATE; VALSARTAN; HYDROCHLOROTHIAZIDE</SubstanceName>
<StrengthNumber>10; 160; 25</StrengthNumber>
<StrengthUnit>mg/1; mg/1; mg/1</StrengthUnit>
<Pharm_Classes>Angiotensin 2 Receptor Antagonists [MoA], Angiotensin 2 Receptor Blocker [EPC], Calcium Channel Antagonists [MoA], Calcium Channel Blocker [EPC], Cytochrome P450 3A Inhibitors [MoA], Dihydropyridine Calcium Channel Blocker [EPC], Dihydropyridines [CS], Increased Diuresis [PE], Thiazide Diuretic [EPC], Thiazides [CS]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2024-05-20</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20171219</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Amlodipine, valsartan and hydrochlorothiazide tablets are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes, including amlodipine, hydrochlorothiazide, and the ARB class to which valsartan principally belongs. There are no controlled trials demonstrating risk reduction with amlodipine, valsartan and hydrochlorothiazide tablets. Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than 1 drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC). Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly. Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (e.g., patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal. Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy. Limitation of Use. Amlodipine, valsartan and hydrochlorothiazide tablets are not indicated for the initial therapy of hypertension [see Dosage and Administration (2)].</IndicationAndUsage>
<Description>Amlodipine, valsartan and hydrochlorothiazide tablets USP are a fixed combination of amlodipine, valsartan, and hydrochlorothiazide. Amlodipine, valsartan and hydrochlorothiazide tablets USP contain the besylate salt of amlodipine, a dihydropyridine calcium channel blocker (CCB). Amlodipine besylate, USP is a white or almost white powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate’s chemical name is 3-Ethyl 5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(o-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulfonate; its structural formula is. Its molecular formula is C20H25ClN2O5C6H6O3S and its molecular weight is 567.1. Valsartan, USP is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT1 receptor subtype. Valsartan, USP is a white, fine hygroscopic powder, soluble in ethanol and methanol and slightly soluble in water. Valsartan’s chemical name is N-(1-oxopentyl)-N-[[2′-(1H-tetrazol-5-yl) [1,1′-biphenyl]-4-yl]methyl]-L-valine; its structural formula is. Its molecular formula is C24H29N5O3 and its molecular weight is 435.5. Hydrochlorothiazide, USP is a white or practically white, practically odorless, crystalline powder. It is slightly soluble in water; freely soluble in sodium hydroxide solution, in n-butylamine, and in dimethylformamide; sparingly soluble in methanol; and insoluble in ether, in chloroform, and in dilute mineral acids. Hydrochlorothiazide is chemically described as 6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Hydrochlorothiazide is a thiazide diuretic. Its molecular formula is C7H8ClN3O4S2, its molecular weight is 297.73, and its structural formula is. Amlodipine, valsartan and hydrochlorothiazide is available as film-coated tablets containing amlodipine besylate USP (6.9 mg or 13.9 mg, equivalent to 5 mg or 10 mg of amlodipine respectively), with valsartan USP 160 mg or 320 mg, and hydrochlorothiazide USP 12.5 mg or 25 mg, providing for the following available combinations: 5 mg/160 mg/12.5 mg, 10 mg/160 mg/12.5 mg, 5 mg/160 mg/25 mg, 10 mg/160 mg/25 mg, and 10 mg/320 mg/25 mg. The inactive ingredients for all strengths of the tablets include colloidal silicon dioxide, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, pregelatinized starch (maize), sodium starch glycolate, talc, and titanium dioxide. Additionally, the 10 mg/160 mg/12.5 mg strength contains red iron oxide and yellow iron oxide; the 5 mg/160 mg/25 mg, 10 mg/160 mg/25 mg and 10 mg/320 mg/25 mg strengths contain yellow iron oxide. USP Organic Impurities Test pending.</Description>
</NDC>
<NDC>
<NDCCode>69097-837-05</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE (69097-837-05) </PackageDescription>
<NDC11Code>69097-0837-05</NDC11Code>
<ProductNDC>69097-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amlodipine Besylate</ProprietaryName>
<NonProprietaryName>Amlodipine Besylate</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20160701</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA077955</ApplicationNumber>
<LabelerName>Cipla USA Inc.</LabelerName>
<SubstanceName>AMLODIPINE BESYLATE</SubstanceName>
<StrengthNumber>5</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Calcium Channel Antagonists [MoA], Dihydropyridine Calcium Channel Blocker [EPC], Dihydropyridines [CS]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2020-10-23</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20160701</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Amlodipine besylate, USP is a calcium channel blocker and may be used alone or in combination with other antihypertensive and antianginal agents for the treatment of: 1 Hypertension (1.1)Amlodipine besylate tablets, USP are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions.</IndicationAndUsage>
<Description>Amlodipine besylate, USP is the besylate salt of amlodipine, a long-acting calcium channel blocker. Amlodipine besylate, USP is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C20H25CIN2O5C6H6O3S, and its structural formula is. Amlodipine besylate, USP is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate tablets, USP are formulated as white tablets equivalent to 2.5 mg, 5 mg, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, USP each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate.</Description>
</NDC>
<NDC>
<NDCCode>71205-837-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (71205-837-90) </PackageDescription>
<NDC11Code>71205-0837-90</NDC11Code>
<ProductNDC>71205-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Fluphenazine Hydrochloride</ProprietaryName>
<NonProprietaryName>Fluphenazine Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20220801</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA215848</ApplicationNumber>
<LabelerName>Proficient Rx LP</LabelerName>
<SubstanceName>FLUPHENAZINE HYDROCHLORIDE</SubstanceName>
<StrengthNumber>1</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Phenothiazine [EPC], Phenothiazines [CS]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2023-02-28</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20230221</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Fluphenazine hydrochloride tablets are indicated in the management of manifestations of psychotic disorders. Fluphenazine hydrochloride has not been shown effective in the management of behavioral complications in patients with mental retardation.</IndicationAndUsage>
<Description>Fluphenazine hydrochloride is a trifluoromethyl phenothiazine derivative intended for the management of schizophrenia. The chemical designation is 4-[3-[2-(Trifluoromethyl) phenothiazin-10-yl] propyl]-1-piperazineethanol dihydrochloride. The structural formula is represented below. Fluphenazine Hydrochloride Tablets, USP, for oral administration, contain 1 mg, 2.5 mg, 5 mg, or 10 mg fluphenazine hydrochloride, USP per tablet. Each tablet also contains FD&C Blue No. 1 Aluminum Lake (2.5 mg and 5 mg tablet), FD&C Blue No. 2 Aluminum Lake (2.5 mg tablet), FD&C Red No. 3 Aluminum Lake (5 mg tablet), FD&C Yellow No. 5 Aluminum Lake (5 mg tablet), FD&C Yellow No. 6 Aluminum Lake (10 mg tablet), lactose monohydrate, hypromellos, microcrystalline cellulose, magnesium stearate, polyethylene glycol 3350, polyvinyl alcohol, purified water, talc and titanium dioxide.</Description>
</NDC>
<NDC>
<NDCCode>71610-837-60</NDCCode>
<PackageDescription>90 TABLET, EXTENDED RELEASE in 1 BOTTLE (71610-837-60) </PackageDescription>
<NDC11Code>71610-0837-60</NDC11Code>
<ProductNDC>71610-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Metformin Hydrochloride</ProprietaryName>
<NonProprietaryName>Metformin Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET, EXTENDED RELEASE</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20130301</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA201991</ApplicationNumber>
<LabelerName>Aphena Pharma Solutions - Tennessee, LLC</LabelerName>
<SubstanceName>METFORMIN HYDROCHLORIDE</SubstanceName>
<StrengthNumber>500</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Biguanide [EPC], Biguanides [CS]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2024-06-07</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20240531</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Metformin hydrochloride extended-release tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.</IndicationAndUsage>
<Description>Metformin hydrochloride extended-release tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below:. Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4H 11N 5 HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK aof metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contains 500 mg of metformin hydrochloride, which is equivalent to 389.93 mg metformin base. Metformin hydrochloride extended-release tablets USP, 500 mg contain the inactive ingredients carboxymethylcellulose sodium, hypromellose and magnesium stearate. Metformin Hydrochloride Extended-Release Tablets, USP meets USP Dissolution Test 3.</Description>
</NDC>
<NDC>
<NDCCode>76420-837-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE (76420-837-90) </PackageDescription>
<NDC11Code>76420-0837-90</NDC11Code>
<ProductNDC>76420-837</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Gabapentin</ProprietaryName>
<NonProprietaryName>Gabapentin</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20211001</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA214957</ApplicationNumber>
<LabelerName>Asclemed USA, Inc.</LabelerName>
<SubstanceName>GABAPENTIN</SubstanceName>
<StrengthNumber>800</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Decreased Central Nervous System Disorganized Electrical Activity [PE]</Pharm_Classes>
<Status>Active</Status>
<LastUpdate>2025-05-23</LastUpdate>
<PackageNdcExcludeFlag>N</PackageNdcExcludeFlag>
<ProductNdcExcludeFlag>N</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20261231</ListingRecordCertifiedThrough>
<StartMarketingDatePackage>20240807</StartMarketingDatePackage>
<SamplePackage>N</SamplePackage>
<IndicationAndUsage>Gabapentin tablets are indicated for: 1 Management of postherpetic neuralgia in adults, 2 Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy.</IndicationAndUsage>
<Description>The active ingredient in gabapentin tablets is gabapentin, USP which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. The molecular formula of gabapentin is C 9H 17NO 2and the molecular weight is 171.24. The structural formula of gabapentin is:. Gabapentin, USP is a white to off-white crystalline solid with a pK a1of 3.7 and a pK a2of 10.7. It is freely soluble in water and both basic and acidic aqueous solutions. The log of the partition coefficient (n-octanol/0.05M phosphate buffer) at pH 7.4 is –1.25. Each gabapentin tablet contains 600 mg or 800 mg of gabapentin, USP and the following inactive ingredients: mannitol, hydroxypropyl cellulose, crospovidone, talc, silicon dioxide, glyceryl dibehenate, and magnesium stearate.</Description>
</NDC>
<NDC>
<NDCCode>16590-808-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE, PLASTIC (16590-808-90)</PackageDescription>
<NDC11Code>16590-0808-90</NDC11Code>
<ProductNDC>16590-808</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Propranolol</ProprietaryName>
<NonProprietaryName>Propranolol Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19860101</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA070175</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>PROPRANOLOL HYDROCHLORIDE</SubstanceName>
<StrengthNumber>10</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Adrenergic beta-Antagonists [MoA],beta-Adrenergic Blocker [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<Description>Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018.</Description>
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<Description>Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018.</Description>
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<Description>Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is. STRUCTURE IMAGE. Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as 10 mg, 20 mg, 40 mg and 80 mg tablets for oral administration. Propranolol Hydrochloride Tablets USP 10 mg, 20 mg, 40 mg, and 80 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, D and C Yellow No. 10, magnesium stearate, microcrystalline cellulose and stearic acid. Propranolol Hydrochloride Tablets USP 10 mg and 80 mg also contain FD and C Yellow No. 6. Propranolol Hydrochloride Tablets USP 20 mg and 40 mg also contain FD and C Blue No. 1. Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable. In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of betaadrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity. Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain. The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain. The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor. Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose. Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine. Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)-enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. Propranolol crosses the blood-brain barrier and the placenta, and is distributed into breast milk. Propranolol is extensively metabolized with most metabolites appearing in the urine. Propranolol is metabolized through three primary routes: aromatic hydroxylation (mainly 4-hydroxylation), N-dealkylation followed by further side-chain oxidation, and direct glucuronidation. It has been estimated that the percentage contributions of these routes to total metabolism are 42%, 41% and 17%, respectively, but with considerable variability between individuals. The four major metabolites are propranolol glucuronide, naphthyloxylactic acid and glucuronic acid, and sulfate conjugates of 4-hydroxy propranolol. In vitro studies have indicated that the aromatic hydroxylation of propranolol is catalyzed mainly by polymorphic CYP2D6. Side-chain oxidation is mediated mainly by CYP1A2 and to some extent by CYP2D6. 4-hydroxy propranolol is a weak inhibitor of CYP2D6. Propranolol is also a substrate of CYP2C19 and a substrate for the intestinal efflux transporter, p-glycoprotein (p-gp). Studies suggest however that p-gp is not dose-limiting for intestinal absorption of propranolol in the usual therapeutic dose range. In healthy subjects, no difference was observed between CYP2D6 extensive metabolizers (EMs) and poor metabolizers (PMs) with respect to oral clearance or elimination half-life. Partial clearance of 4-hydroxy propranolol was significantly higher and of naphthyloxyactic acid significantly lower in EMs than PMs. The plasma half-life of propranolol is from 3 to 6 hours. Propranolol is a racemic mixture of two enantiomers, R(+) and S(-). The S(-)-enantiomer is approximately 100 times as potent as the R(+)- enantiomer in blocking beta adrenergic receptors. In normal subjects receiving oral doses of racemic propranolol, S(-)-enantiomer concentrations exceeded those of the R(+)-enantiomer by 40-90% as a result of stereoselective hepatic metabolism. Clearance of the pharmacologically active S(-)-propranolol is lower than R(+)-propranolol after intravenous and oral doses. Geriatric. In a study of 12 elderly (62-79 years old) and 12 young (25-33 years old) healthy subjects, the clearance of S(-)-enantiomer of propranolol was decreased in the elderly. Additionally, the half-life of both the R(+)- and S(-)- propranolol were prolonged in the elderly compared with the young (11 hours vs. 5 hours). Clearance of propranolol is reduced with aging due to decline in oxidation capacity (ring oxidation and side-chain oxidation). Conjugation capacity remains unchanged. In a study of 32 patients age 30 to 84 years given a single 20-mg dose of propranolol, an inverse correlation was found between age and the partial metabolic clearances to 4-hydroxypropranolol (40HP-ring oxidation) and to naphthoxylactic acid (NLA-side chain oxidation). No correlation was found between age and the partial metabolic clearance to propranolol glucuronide (PPLG-conjugation). Gender. In a study of 9 healthy women and 12 healthy men, neither the administration of testosterone nor the regular course of the menstrual cycle affected the plasma binding of the propranolol enantiomers. In contrast, there was a significant, although non-enantioselective diminution of the binding of propranolol after treatment with ethinyl estradiol. These findings are inconsistent with another study, in which administration of testosterone cypionate confirmed the stimulatory role of this hormone on propranolol metabolism and concluded that the clearance of propranolol in men is dependent on circulating concentrations of testosterone. In women, none of the metabolic clearances for propranolol showed any significant association with either estradiol or testosterone. Race. A study conducted in 12 Caucasian and 13 African-American male subjects taking propranolol, showed that at steady state, the clearance of R(+)- and S(-)-propranolol were about 76% and 53% higher in African-Americans than in Caucasians, respectively. Chinese subjects had a greater proportion (18% to 45% higher) of unbound propranolol in plasma compared to Caucasians, which was associated with a lower plasma concentration of alpha1 acid glycoprotein. Renal Insufficiency. In a study conducted in 5 patients with chronic renal failure, 6 patients on regular dialysis, and 5 healthy subjects, who received a single oral dose of 40 mg of propranolol, the peak plasma concentrations (Cmax) of propranolol in the chronic renal failure group were 2 to 3-fold higher (161±41 ng/mL) than those observed in the dialysis patients (47±9 ng/mL) and in the healthy subjects (26±1 ng/mL). Propranolol plasma clearance was also reduced in the patients with chronic renal failure. Studies have reported a delayed absorption rate and a reduced half-life of propranolol in patients with renal failure of varying severity. Despite this shorter plasma half-life, propranolol peak plasma levels were 3-4 times higher and total plasma levels of metabolites were up to 3 times higher in these patients than in subjects with normal renal function. Chronic renal failure has been associated with a decrease in drug metabolism via down regulation of hepatic cytochrome P450 activity resulting in a lower “first-pass” clearance. Propranolol is not significantly dialyzable. Hepatic Insufficiency. Propranolol is extensively metabolized by the liver. In a study conducted in 7 patients with cirrhosis and 9 healthy subjects receiving 80-mg oral propranolol every 8 hours for 7 doses, the steady-state unbound propranolol concentration in patients with cirrhosis was increased 3-fold in comparison to controls. In cirrhosis, the half-life increased to 11 hours compared to 4 hours (see PRECAUTIONS). Interactions with Substrates, Inhibitors or Inducers of Cytochrome P-450 Enzymes. Because propranolol’s metabolism involves multiple pathways in the cytochrome P-450 system (CYP2D6, 1A2, 2C19), co-administration with drugs that are metabolized by, or effect the activity (induction or inhibition) of one or more of these pathways may lead to clinically relevant drug interactions (see Drug Interactions under PRECAUTIONS). Substrates or Inhibitors of CYP2D6. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2D6, such as amiodarone, cimetidine, delavudin, fluoxetine, paroxetine, quinidine, and ritonavir. No interactions were observed with either ranitidine or lansoprazole. Substrates or Inhibitors of CYP1A2. Blood levels and/or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP1A2, such as imipramine, cimetidine, ciprofloxacin, fluvoxamine, isoniazid, ritonavir, theophylline, zileuton, zolmitriptan, and rizatriptan. Substrates or Inhibitors of CYP2C19. Blood levels and or toxicity of propranolol may be increased by coadministration with substrates or inhibitors of CYP2C19, such as fluconazole, cimetidine, fluoxetine, fluvoxamine, teniposide, and tolbutamide. No interaction was observed with omeprazole. Inducers of Hepatic Drug Metabolism. Blood levels of propranolol may be decreased by co-administration with inducers such as rifampin, ethanol, phenytoin, and phenobarbital. Cigarette smoking also induces hepatic metabolism and has been shown to increase up to 77% the clearance of propranolol, resulting in decreased plasma concentrations. Cardiovascular Drugs. Antiarrhythmics. The AUC of propafenone is increased by more than 200% by co-administration of propranolol. The metabolism of propranolol is reduced by co-administration of quinidine, leading to a two-three fold increased blood concentration and greater degrees of clinical beta-blockade. The metabolism of lidocaine is inhibited by co-administration of propranolol, resulting in a 25% increase in lidocaine concentrations. Calcium Channel Blockers. The mean Cmax and AUC of propranolol are increased respectively, by 50% and 30% by co-administration of nisoldipine and by 80% and 47%, by coadministration of nicardipine. The mean Cmax and AUC of nifedipine are increased by 64% and 79%, respectively, by co-administration of propranolol. Propranolol does not affect the pharmacokinetics of verapamil and norverapamil. Verapamil does not affect the pharmacokinetics of propranolol. Non-Cardiovascular Drugs. Migraine Drugs. Administration of zolmitriptan or rizatriptan with propranolol resulted in increased concentrations of zolmitriptan (AUC increased by 56% and Cmax by 37%) or rizatriptan (the AUC and Cmax were increased by 67% and 75%, respectively). Theophylline. Co-administration of theophylline with propranolol decreases theophylline oral clearance by 30% to 52%. Benzodiazepines. Propranolol can inhibit the metabolism of diazepam, resulting in increased concentrations of diazepam and its metabolites. Diazepam does not alter the pharmacokinetics of propranolol. The pharmacokinetics of oxazepam, triazolam, lorazepam, and alprazolam are not affected by co-administration of propranolol. Neuroleptic Drugs. Co-administration of long-acting propranolol at doses greater than or equal to 160 mg/day resulted in increased thioridazine plasma concentrations ranging from 55% to 369% and increased thioridazine metabolite (mesoridazine) concentrations ranging from 33% to 209%. Co-administration of chlorpromazine with propranolol resulted in a 70% increase in propranolol plasma level. Anti-Ulcer Drugs. Co-administration of propranolol with cimetidine, a non-specific CYP450 inhibitor, increased propranolol AUC and Cmax by 46% and 35%, respectively. Co-administration with aluminum hydroxide gel (1200 mg) may result in a decrease in propranolol concentrations. Co-administration of metoclopramide with the long-acting propranolol did not have a significant effect on propranolol’s pharmacokinetics. Lipid Lowering Drugs. Co-administration of cholestyramine or colestipol with propranolol resulted in up to 50% decrease in propranolol concentrations. Co-administration of propranolol with lovastatin or pravastatin, decreased 18% to 23% the AUC of both, but did not alter their pharmacodynamics. Propranolol did not have an effect on the pharmacokinetics of fluvastatin. Warfarin. Concomitant administration of propranolol and warfarin has been shown to increase warfarin bioavailability and increase prothrombin time. Alcohol. Concomitant use of alcohol may increase plasma levels of propranolol. In a retrospective, uncontrolled study, 107 patients with diastolic blood pressure 110 to 150 mmHg received propranolol 120 mg t.i.d. for at least 6 months, in addition to diuretics and potassium, but with no other antihypertensive agent. Propranolol contributed to control of diastolic blood pressure, but the magnitude of the effect of propranolol on blood pressure cannot be ascertained. In a double-blind, placebo-controlled study of 32 patients of both sexes, aged 32 to 69 years, with stable angina, propranolol 100 mg t.i.d. was administered for 4 weeks and shown to be more effective than placebo in reducing the rate of angina episodes and in prolonging total exercise time. In a report examining the long-term (5-22 months) efficacy of propranolol, 10 patients, aged 27 to 80, with atrial fibrillation and ventricular rate greater than120 beats per minute despite digitalis, received propranolol up to 30 mg t.i.d. Seven patients (70%) achieved ventricular rate reduction to less than 100 beats per minute. The Beta-Blocker Heart Attack Trial (BHAT) was a National Heart, Lung and Blood Institute-sponsored multicenter, randomized, double-blind, placebocontrolled trial conducted in 31 U.S. centers (plus one in Canada) in 3,837 persons without history of severe congestive heart failure or presence of recent heart failure; certain conduction defects; angina since infarction, who had survived the acute phase of myocardial infarction. Propranolol was administered at either 60 or 80 mg t.i.d. based on blood levels achieved during an initial trial of 40 mg t.i.d. Therapy with propranolol, begun 5 to 21 days following infarction, was shown to reduce overall mortality up to 39 months, the longest period of follow-up. This was primarily attributable to a reduction in cardiovascular mortality. The protective effect of propranolol was consistent regardless of age, sex, or site of infarction. Compared with placebo, total mortality was reduced 39% at 12 months and 26% over an average follow-up period of 25 months. The Norwegian Multicenter Trial in which propranolol was administered at 40 mg q.i.d. gave overall results which support the findings in the BHAT. Although the clinical trials used either t.i.d. or q.i.d. dosing, clinical, pharmacologic, and pharmacokinetic data provide a reasonable basis for concluding that b.i.d. dosing with propranolol should be adequate in the treatment of postinfarction patients. In a 34-week, placebo-controlled, 4-period, dose-finding crossover study with a double-blind randomized treatment sequence, 62 patients with migraine received propranolol 20 to 80 mg 3 or 4 times daily. The headache unit index, a composite of the number of days with headache and the associated severity of the headache, was significantly reduced for patients receiving propranolol as compared to those on placebo. In a 2 week, double-blind, parallel, placebo-controlled study of 9 patients with essential or familial tremor, propranolol, at a dose titrated as needed from 40-80 mg t.i.d. reduced tremor severity compared to placebo. In an uncontrolled series of 13 patients with New York Heart Association (NYHA) class 2 or 3 symptoms and hypertrophic subaortic stenosis diagnosed at cardiac catheterization, oral propranolol 40-80 mg t.i.d. was administered and patients were followed for up to 17 months. Propranolol was associated with improved NYHA class for most patients. In an uncontrolled series of 3 patients with norepinephrine-secreting pheochromocytoma who were pretreated with an alpha adrenergic blocker (prazosin), perioperative use of propranolol at doses of 40-80 mg t.i.d. resulted in symptomatic blood pressure control. Hypertension. Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride is not indicated in the management of hypertensive emergencies. Angina Pectoris Due to Coronary Atherosclerosis. Propranolol hydrochloride tablets are indicated to decrease angina frequency and increase exercise tolerance in patients with angina pectoris. Atrial Fibrillation. Propranolol hydrochloride tablets are indicated to control ventricular rate in patients with atrial fibrillation and a rapid ventricular response. Myocardial Infarction. Propranolol is indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Migraine. Propranolol is indicated for the prophylaxis of common migraine headache. The efficacy of propranolol in the treatment of a migraine attack that has started has not been established, and propranolol is not indicated for such use. Essential Tremor. Propranolol is indicated in the management of familial or hereditary essential tremor. Familial or essential tremor consists of involuntary, rhythmic, oscillatory movements, usually limited to the upper limbs. It is absent at rest but occurs when the limb is held in a fixed posture or position against gravity and during active movement. Propranolol causes a reduction in the tremor amplitude but not in the tremor frequency. Propranolol is not indicated for the treatment of tremor associated with Parkinsonism. Hypertrophic Subaortic Stenosis. Propranolol improves NYHA functional class in symptomatic patients with hypertrophic subaortic stenosis. Pheochromocytoma. Propranolol is indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol is contraindicated in 1) cardiogenic shock; 2) sinus bradycardia and greater than first degree block; 3) bronchial asthma; and 4) in patients with known hypersensitivity to propranolol hydrochloride. Angina Pectoris. There have been reports of exacerbation of angina and, in some cases, myocardial infarction, following abrupt discontinuance of propranolol therapy. Therefore, when discontinuance of propranolol is planned, the dosage should be gradually reduced over at least a few weeks and the patient should be cautioned against interruption or cessation of therapy without the physician’s advice. If propranolol therapy is interrupted and exacerbation of angina occurs, it usually is advisable to reinstitute propranolol therapy and take other measures appropriate for the management of angina pectoris. Since coronary artery disease may be unrecognized, it may be prudent to follow the above advice in patients considered at risk of having occult atherosclerotic heart disease who are given propranolol for other indications. Hypersensitivity and Skin Reactions. Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, have been associated with the administration of propranolol (see ADVERSE REACTIONS). Cutaneous reactions, including Stevens-Johnson Syndrome, toxic epidermal necrolysis, exfoliative dermatitis, erythema multiforme, and urticaria, have been reported with use of propranolol (see ADVERSE REACTIONS). Cardiac Failure. Sympathetic stimulation may be a vital component supporting circulatory function in patients with congestive heart failure, and its inhibition by beta blockade may precipitate more severe failure. Although beta blockers should be avoided in overt congestive heart failure, some have been shown to be highly beneficial when used with close follow-up in patients with a history of failure who are well compensated and are receiving additional therapies, including diuretics as needed. Beta-adrenergic blocking agents do not abolish the inotropic action of digitalis on heart muscle. In Patients without a History of Heart Failure, continued use of beta blockers can, in some cases, lead to cardiac failure. Nonallergic Bronchospasm (e.g., Chronic Bronchitis, Emphysema). In general, patients with bronchospastic lung disease should not receive beta blockers. Propranolol should be administered with caution in this setting since it may provoke a bronchial asthmatic attack by blocking bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta-receptors. Major Surgery. The necessity or desirability of withdrawal of beta-blocking therapy prior to major surgery is controversial. It should be noted, however, that the impaired ability of the heart to respond to reflex adrenergic stimuli in propranololtreated patients may augment the risks of general anesthesia and surgical procedures. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. However, such patients may be subject to protracted severe hypotension. Diabetes and Hypoglycemia. Beta-adrenergic blockade may prevent the appearance of certain premonitory signs and symptoms (pulse rate and pressure changes) of acute hypoglycemia, especially in labile insulin-dependent diabetics. In these patients, it may be more difficult to adjust the dosage of insulin. Propranolol therapy, particularly when given to infants and children, diabetic or not, has been associated with hypoglycemia especially during fasting as in preparation for surgery. Hypoglycemia has been reported in patients taking propranolol after prolonged physical exertion and in patients with renal insufficiency. Thyrotoxicosis. Beta-adrenergic blockade may mask certain clinical signs of hyperthyroidism. Therefore, abrupt withdrawal of propranolol may be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. Propranolol may change thyroid-function tests, increasing T4 and reverse T3 and decreasing T3. Wolff-Parkinson-White Syndrome. Beta-adrenergic blockade in patients with Wolf-Parkinson-White Syndrome and tachycardia has been associated with severe bradycardia requiring treatment with a pacemaker. In one case, this result was reported after an initial dose of 5 mg propranolol. Pheochromocytoma. Blocking only the peripheral dilator (beta) action of epinephrine with propranolol leaves its constrictor (alpha) action unopposed. In the event of hemorrhage or shock, there is a disadvantage in having both beta and alpha blockade since the combination prevents the increase in heart rate and peripheral vasoconstriction needed to maintain blood pressure. Propranolol should be used with caution in patients with impaired hepatic or renal function. Propranolol is not indicated for the treatment of hypertensive emergencies. Beta-adrenergic receptor blockade can cause reduction of intraocular pressure. Patients should be told that propranolol may interfere with the glaucoma screening test. Withdrawal may lead to a return of increased intraocular pressure. While taking beta blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. In patients with hypertension, use of propranolol has been associated with elevated levels of serum potassium, serum transaminases and alkaline phosphatase. In severe heart failure, the use of propranolol has been associated with increases in Blood Urea Nitrogen. Caution should be exercised when propranolol is administered with drugs that have an effect on CYP2D6, 1A2, or 2C19 metabolic pathways. Coadministration of such drugs with propranolol may lead to clinically relevant drug interactions and changes on its efficacy and/or toxicity (see Drug Interactions in PHARMACOKINETICS AND DRUG METABOLISM). Cardiovascular Drugs. Antiarrhythmics. Propafenone has negative inotropic and beta-blocking properties that can be additive to those of propranolol. Quinidine increases the concentration of propranolol and produces greater degrees of clinical beta-blockade and may cause postural hypotension. Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with β-blockers such as propranolol. The clearance of lidocaine is reduced with administration of propranolol. Lidocaine toxicity has been reported following co-administration with propranolol. Caution should be exercised when administering propranolol with drugs that slow A-V nodal conduction, e.g. lidocaine and calcium channel blockers. Digitalis Glycosides. Both digitalis glycosides and beta-blockers slow atrioventricular conduction and decrease heartrate. Concomitant use can increase the risk of bradycardia. Calcium Channel Blockers. Caution should be exercised when patients receiving a beta blocker are administered a calcium-channel-blocking drug with negative inotropic and/or chronotropic effects. Both agents may depress myocardial contractility or atrioventricular conduction. There have been reports of significant bradycardia, heart failure, and cardiovascular collapse with concurrent use of verapamil and beta-blockers. Co-administration of propranolol and diltiazem in patients with cardiac disease has been associated with bradycardia, hypotension, high degree heart block, and heart failure. ACE Inhibitors. When combined with beta-blockers, ACE inhibitors can cause hypotension, particularly in the setting of acute myocardial infarction. The antihypertensive effects of clonidine may be antagonized by betablockers. Propranolol should be administered cautiously to patients withdrawing from clonidine. Alpha Blockers. Prazosin has been associated with prolongation of first dose hypotension in the presence of beta-blockers. Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin. Reserpine. Patients receiving catecholamine-depleting drugs, such as reserpine, should be closely observed for excessive reduction of resting sympathetic nervous activity, which may result in hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension. Inotropic Agents. Patients on long term therapy with propranolol may experience uncontrolled hypertension if administered epinephrine as a consequence of unopposed alpha-receptor stimulation. Epinephrine is therefore not indicated in the treatment of propranolol overdose (see OVERDOSAGE). Isoproterenol and Dobutamine. Propranolol is a competitive inhibitor of beta-receptor agonists, and its effects can be reversed by administration of such agents, e.g., dobutamine or isoproterenol. Also, propranolol may reduce sensitivity to dobutamine stress echocardiography in patients undergoing evaluation for myocardial ischemia. Non-Cardiovascular Drugs. Nonsteroidal Anti-Inflammatory Drugs. Nonsteroidal anti-inflammatory drugs (NSAIDS) have been reported to blunt the antihypertensive effect of beta-adrenoreceptor blocking agents. Administration of indomethacin with propranolol may reduce the efficacy of propranolol in reducing blood pressure and heart rate. Antidepressants. The hypotensive effects of MAO inhibitors or tricyclic antidepressants may be exacerbated when administered with beta-blockers by interfering with the beta blocking activity of propranolol. Anesthetic Agents. Methoxyflurane and trichloroethylene may depress myocardial contractility when administered with propranolol. Warfarin. Propranolol when administered with warfarin increases the concentration of warfarin. Prothrombin time, therefore, should be monitored. Neuroleptic Drugs. Hypotension and cardiac arrest have been reported with the concomitant use of propranolol and haloperidol. Thyroxine. Thyroxine may result in a lower than expected T3 concentration when used concomitantly with propranolol. Alcohol. Alcohol, when used concomitantly with propranolol, may increase plasma levels of propranolol. In dietary administration studies in which mice and rats were treated with propranolol hydrochloride for up to 18 months at doses of up to 150 mg/kg/day, there was no evidence of drug-related tumorigenesis. On a body surface area basis, this dose in the mouse and rat is, respectively, about equal to and about twice the maximum recommended human oral daily dose (MRHD) of 640 mg propranolol hydrochloride. In a study in which both male and female rats were exposed to propranolol hydrochloride in their diets at concentrations of up to 0.05% (about 50 mg/kg body weight and less than the MRHD), from 60 days prior to mating and throughout pregnancy and lactation for two generations, there were no effects on fertility. Based on differing results from Ames Tests performed by different laboratories, there is equivocal evidence for a genotoxic effect of propranolol hydrochloride in bacteria (S. typhimurium strain TA 1538). In a series of reproductive and developmental toxicology studies, propranolol hydrochloride was given to rats by gavage or in the diet throughout pregnancy and lactation. At doses of 150 mg/kg/day, but not at doses of 80 mg/kg/day (equivalent to the MRHD on a body surface area basis), treatment was associated with embryotoxicity (reduced litter size and increased resorption rates) as well as neonatal toxicity (deaths). Propranolol hydrochloride also was administered (in the feed) to rabbits (throughout pregnancy and lactation) at doses as high as 150 mg/kg/day (about 5 times the maximum recommended human oral daily dose). No evidence of embryo or neonatal toxicity was noted. There are no adequate and well-controlled studies in pregnant women. Intrauterine growth retardation, small placentas, and congenital abnormalities have been reported in neonates whose mothers received propranolol during pregnancy. Neonates whose mothers received propranolol at parturition have exhibited bradycardia, hypoglycemia, and/or respiratory depression. Adequate facilities for monitoring such infants at birth should be available. Propranolol should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Propranolol is excreted in human milk. Caution should be exercised when propranolol is administered to a nursing woman. Safety and effectiveness of propranolol in pediatric patients have not been established. Bronchospasm and congestive heart failure have been reported coincident with the administration of propranolol therapy in pediatric patients. Clinical studies of propranolol did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. The following adverse events were observed and have been reported in patients using propranolol. Cardiovascular: Bradycardia; congestive heart failure; intensification of AV block; hypotension; paresthesia of hands; thrombocytopenic purpura; arterial insufficiency, usually of the Raynaud type. Central Nervous System: Light-headedness, mental depression manifested by insomnia, lassitude, weakness, fatigue; catatonia; visual disturbances; hallucinations; vivid dreams; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics. For immediate-release formulations, fatigue, lethargy, and vivid dreams appear dose related. Gastrointestinal: Nausea, vomiting, epigastric distress, abdominal cramping, diarrhea, constipation, mesenteric arterial thrombosis, ischemic colitis. Allergic: Hypersensitivity reactions, including anaphylactic/anaphylactoid reactions, pharyngitis and agranulocytosis; erythematous rash, fever combined with aching and sore throat; laryngospasm, and respiratory distress. Respiratory: Bronchospasm. Hematologic: Agranulocytosis, nonthrombocytopenic purpura, thrombocytopenic purpura. Autoimmune: Systemic lupus erythematosus (SLE). Skin and mucous membranes: Stevens-Johnson Syndrome, toxic epidermal necrolysis, dry eyes, exfoliative dermatitis, erythema multiforme, urticaria, alopecia, SLE-like reactions, and psoriasiform rashes. Oculomucocutaneous syndrome involving the skin, serous membranes and conjunctivae reported for a beta blocker (practolol) have not been associated with propranolol. Genitourinary: Male impotence; Peyronie’s disease. Propranolol is not significantly dialyzable. In the event of overdosage or exaggerated response, the following measures should be employed. General: If ingestion is or may have been recent, evacuate gastric contents, taking care to prevent pulmonary aspiration. Supportive Therapy: Hypotension and bradycardia have been reported following propranolol overdose and should be treated appropriately. Glucagon can exert potent inotropic and chronotropic effects and may be particularly useful for the treatment of hypotension or depressed myocardial function after a propranolol overdose. Glucagon should be administered as 50-150 mcg/kg intravenously followed by continuous drip of 1-5 mg/hour for positive chronotropic effect. Isoproterenol, dopamine or phosphodiesterase inhibitors may also be useful. Epinephrine, however, may provoke uncontrolled hypertension. Bradycardia can be treated with atropine or isoproterenol. Serious bradycardia may require temporary cardiac pacing. The electrocardiogram, pulse, blood pressure, neurobehavioral status and intake and output balance must be monitored. Isoproterenol and aminophylline may be used for bronchospasm. General. Because of the variable bioavailability of propranolol, the dose should be individualized based on response. Hypertension. The usual initial dosage is 40 mg propranolol hydrochloride twice daily, whether used alone or added to a diuretic. Dosage may be increased gradually until adequate blood pressure control is achieved. The usual maintenance dosage is 120 mg to 240 mg per day. In some instances a dosage of 640 mg a day may be required. The time needed for full antihypertensive response to a given dosage is variable and may range from a few days to several weeks. While twice-daily dosing is effective and can maintain a reduction in blood pressure throughout the day, some patients, especially when lower doses are used, may experience a modest rise in blood pressure toward the end of the 12-hour dosing interval. This can be evaluated by measuring blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day. If control is not adequate, a larger dose, or 3-times-daily therapy may achieve better control. Angina Pectoris. Total daily doses of 80 mg to 320 mg propranolol hydrochloride, when administered orally, twice a day, three times a day, or four times a day, have been shown to increase exercise tolerance and to reduce ischemic changes in the ECG. If treatment is to be discontinued, reduce dosage gradually over a period of several weeks. (See WARNINGS.). Atrial Fibrillation. The recommended dose is 10 mg to 30 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Myocardial Infarction. In the Beta-Blocker Heart Attack Trial (BHAT), the initial dose was 40 mg t.i.d., with titration after 1 month to 60 mg to 80 mg t.i.d. as tolerated. The recommended daily dosage is 180 mg to 240 mg propranolol hydrochloride per day in divided doses. Although a t.i.d. regimen was used in BHAT and a q.i.d. regimen in the Norwegian Multicenter Trial, there is a reasonable basis for the use of either a t.i.d. or b.i.d. regimen (see PHARMACOKINETICS AND DRUG METABOLISM). The effectiveness and safety of daily dosages greater than 240 mg for prevention of cardiac mortality have not been established. However, higher dosages may be needed to effectively treat coexisting diseases such as angina or hypertension (see above). Migraine. The initial dose is 80 mg propranolol hydrochloride daily in divided doses. The usual effective dose range is 160 mg to 240 mg per day. The dosage may be increased gradually to achieve optimum migraine prophylaxis. If a satisfactory response is not obtained within four to six weeks after reaching the maximum dose, propranolol therapy should be discontinued. It may be advisable to withdraw the drug gradually over a period of several weeks. Essential Tremor. The initial dosage is 40 mg propranolol hydrochloride twice daily. Optimum reduction of essential tremor is usually achieved with a dose of 120 mg per day. Occasionally, it may be necessary to administer 240 mg to 320 mg per day. Hypertrophic Subaortic Stenosis. The usual dosage is 20 mg to 40 mg propranolol hydrochloride three or four times daily before meals and at bedtime. Pheochromocytoma. The usual dosage is 60 mg propranolol hydrochloride daily in divided doses for three days prior to surgery as adjunctive therapy to alpha-adrenergic blockade. For the management of inoperable tumors, the usual dosage is 30 mg daily in divided doses as adjunctive therapy to alpha-adrenergic blockade. Propranolol Hydrochloride Tablets USP 10 mg are 9/32", scored, round, orange tablets imprinted DAN 5554 and 10 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 20 mg are 9/32", scored, round, blue tablets imprinted DAN 5555 and 20 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 40 mg are 11/32", scored, round, green tablets imprinted DAN 5556 and 40 supplied in bottles of 100 and 1000. Propranolol Hydrochloride Tablets USP 80 mg are 12/32", scored, round, yellow tablets imprinted DAN 5557 and 80 supplied in bottles of 100 and 500. Dispense in a well-closed, light-resistant container with child-resistant closure. Store at 20°-25°C (68°-77°F). [See USP controlled room temperature.] Protect from light. Manufactured By:Watson Pharma Private LimitedVerna, Salcette Goa 403 722 INDIA. Distributed By:Watson Pharma, Inc.Corona, CA 92880 USA. Revised: March 2009 0309B 184018.</Description>
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<IndicationAndUsage>Alprazolam tablets are indicated for the management of anxiety disorder (a condition corresponding most closely to the APA Diagnostic and Statistical Manual [DSM-III-R] diagnosis of generalized anxiety disorder) or the short-term relief of symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. Generalized anxiety disorder is characterized by unrealistic or excessive anxiety and worry (apprehensive expectation) about two or more life circumstances, for a period of six months or longer, during which the person has been bothered more days than not by these concerns. At least 6 of the following 18 symptoms are often present in these patients: Motor Tension (trembling, twitching, or feeling shaky; muscle tension, aches, or soreness; restlessness; easy fatigability); Autonomic Hyperactivity (shortness of breath or smothering sensations; palpitations or accelerated heart rate; sweating, or cold clammy hands; dry mouth; dizziness or light-headedness; nausea, diarrhea, or other abdominal distress; flushes or chills; frequent urination; trouble swallowing or ‘lump in throat’); Vigilance and Scanning (feeling keyed up or on edge; exaggerated startle response; difficulty concentrating or ‘mind going blank’ because of anxiety; trouble falling or staying asleep; irritability). These symptoms must not be secondary to another psychiatric disorder or caused by some organic factor. Anxiety associated with depression is responsive to alprazolam.</IndicationAndUsage>
<Description>Alprazolam is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is. Alprazolam is a white to off-white crystalline powder, which is soluble in alcohol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet, for oral administration, contains 0.25, 0.5, or 1 mg of alprazolam. Inactive ingredients: docusate sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and sodium benzoate. Additionally, the 0.5 mg also contains FD & C Yellow #6 Aluminum Lake, and the 1 mg also contains FD & C Blue #2 Aluminum Lake.</Description>
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<IndicationAndUsage>Alprazolam tablets are indicated for the management of anxiety disorder (a condition corresponding most closely to the APA Diagnostic and Statistical Manual [DSM-III-R] diagnosis of generalized anxiety disorder) or the short-term relief of symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. Generalized anxiety disorder is characterized by unrealistic or excessive anxiety and worry (apprehensive expectation) about two or more life circumstances, for a period of six months or longer, during which the person has been bothered more days than not by these concerns. At least 6 of the following 18 symptoms are often present in these patients: Motor Tension (trembling, twitching, or feeling shaky; muscle tension, aches, or soreness; restlessness; easy fatigability); Autonomic Hyperactivity (shortness of breath or smothering sensations; palpitations or accelerated heart rate; sweating, or cold clammy hands; dry mouth; dizziness or light-headedness; nausea, diarrhea, or other abdominal distress; flushes or chills; frequent urination; trouble swallowing or ‘lump in throat’); Vigilance and Scanning (feeling keyed up or on edge; exaggerated startle response; difficulty concentrating or ‘mind going blank’ because of anxiety; trouble falling or staying asleep; irritability). These symptoms must not be secondary to another psychiatric disorder or caused by some organic factor. Anxiety associated with depression is responsive to alprazolam.</IndicationAndUsage>
<Description>Alprazolam is a triazolo analog of the 1,4 benzodiazepine class of central nervous system-active compounds. The chemical name of alprazolam is 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo [4,3-α] [1,4] benzodiazepine. The structural formula is. Alprazolam is a white to off-white crystalline powder, which is soluble in alcohol but which has no appreciable solubility in water at physiological pH. Each alprazolam tablet, for oral administration, contains 0.25, 0.5, or 1 mg of alprazolam. Inactive ingredients: docusate sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and sodium benzoate. Additionally, the 0.5 mg also contains FD & C Yellow #6 Aluminum Lake, and the 1 mg also contains FD & C Blue #2 Aluminum Lake.</Description>
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<Pharm_Classes>Influenza A M2 Protein Inhibitor [EPC],M2 Protein Inhibitors [MoA]</Pharm_Classes>
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<IndicationAndUsage>Amantadine hydrochloride capsules are indicated for the prophylaxis and treatment of signs and symptoms of infection caused by various strains of influenza A virus. Amantadine hydrochloride capsules are also indicated in the treatment of parkinsonism and drug-induced extrapyramidal reactions.</IndicationAndUsage>
<Description>Amantadine hydrochloride is designated chemically as 1-adamantanamine hydrochloride. Its molecular weight is 187.71 with a molecular formula C10H18NCl. It has the following structural formula. Amantadine hydrochloride is a stable white or nearly white crystalline powder, freely soluble in water and soluble in alcohol and in chloroform. Amantadine hydrochloride has pharmacological actions as both an anti-Parkinson and an antiviral drug. Amantadine hydrochloride is available as 100 mg capsules for oral administration. Inactive ingredients: corn starch, croscarmellose sodium, ethylcellulose, FD&C Blue #1, FD&C Red #40, gelatin, magnesium stearate, methylparaben, microcrystalline cellulose, pregelatinized starch, propylparaben, sodium lauryl sulfate and titanium dioxide.</Description>
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<ApplicationNumber>NDA019908</ApplicationNumber>
<LabelerName>STAT Rx USA LLC</LabelerName>
<SubstanceName>ZOLPIDEM TARTRATE</SubstanceName>
<StrengthNumber>5</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>gamma-Aminobutyric Acid-ergic Agonist [EPC],GABA A Agonists [MoA],Pyridines [Chemical/Ingredient],Central Nervous System Depression [PE]</Pharm_Classes>
<DEASchedule>CIV</DEASchedule>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Ambien (zolpidem tartrate) is indicated for the short-term treatment of insomnia characterized by difficulties with sleep initiation. Ambien has been shown to decrease sleep latency for up to 35 days in controlled clinical studies [see Clinical Studies (14)]. The clinical trials performed in support of efficacy were 4–5 weeks in duration with the final formal assessments of sleep latency performed at the end of treatment.</IndicationAndUsage>
<Description>Ambien (zolpidem tartrate) is a non-benzodiazepine hypnotic of the imidazopyridine class and is available in 5 mg and 10 mg strength tablets for oral administration. Chemically, zolpidem is N,N,6-trimethyl-2-p-tolylimidazo[1,2-a] pyridine-3-acetamide L-(+)-tartrate (2:1). It has the following structure. Zolpidem tartrate is a white to off-white crystalline powder that is sparingly soluble in water, alcohol, and propylene glycol. It has a molecular weight of 764.88. Each Ambien tablet includes the following inactive ingredients: hydroxypropyl methylcellulose, lactose, magnesium stearate, micro-crystalline cellulose, polyethylene glycol, sodium starch glycolate, and titanium dioxide. The 5 mg tablet also contains FD&C Red No. 40, iron oxide colorant, and polysorbate 80.</Description>
</NDC>
<NDC>
<NDCCode>16590-011-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-011-90)</PackageDescription>
<NDC11Code>16590-0011-90</NDC11Code>
<ProductNDC>16590-011</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amitriptyline Hydrochloride</ProprietaryName>
<NonProprietaryName>Amitriptyline Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19970911</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA040218</ApplicationNumber>
<LabelerName>STAT Rx USA LLC</LabelerName>
<SubstanceName>AMITRIPTYLINE HYDROCHLORIDE</SubstanceName>
<StrengthNumber>10</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Tricyclic Antidepressant [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.</IndicationAndUsage>
<Description>Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake.</Description>
</NDC>
<NDC>
<NDCCode>16590-012-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-012-90)</PackageDescription>
<NDC11Code>16590-0012-90</NDC11Code>
<ProductNDC>16590-012</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amitriptyline Hydrochloride</ProprietaryName>
<NonProprietaryName>Amitriptyline Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19970911</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA040218</ApplicationNumber>
<LabelerName>STAT Rx USA LLC</LabelerName>
<SubstanceName>AMITRIPTYLINE HYDROCHLORIDE</SubstanceName>
<StrengthNumber>25</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Tricyclic Antidepressant [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.</IndicationAndUsage>
<Description>Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake.</Description>
</NDC>
<NDC>
<NDCCode>16590-013-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (16590-013-90)</PackageDescription>
<NDC11Code>16590-0013-90</NDC11Code>
<ProductNDC>16590-013</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amitriptyline Hydrochloride</ProprietaryName>
<NonProprietaryName>Amitriptyline Hydrochloride</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19970911</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA040218</ApplicationNumber>
<LabelerName>STAT Rx USA LLC</LabelerName>
<SubstanceName>AMITRIPTYLINE HYDROCHLORIDE</SubstanceName>
<StrengthNumber>50</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>Tricyclic Antidepressant [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.</IndicationAndUsage>
<Description>Amitriptyline HCl is 3-(10,11-dihydro-5H-dibenzo [a,d] cycloheptene-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride. Its empirical formula is C20H23NHCl, and its structural formula is. Amitriptyline HCl, a dibenzocycloheptadiene derivative, has a molecular weight of 313.87. It is a white, odorless, crystalline compound which is freely soluble in water. Amitriptyline HCl is supplied as 10 mg, 25 mg, 50 mg, 75 mg, 100 mg or 150 mg tablets. Each tablet contains the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate, sodium starch glycolate and titanium dioxide. The 10 mg tablets also contain FD&C blue #1 lake. The 25 mg tablets also contain D&C yellow #10 lake and FD&C blue #2 lake. The 50 mg tablets also contain synthetic black iron oxide, synthetic red iron oxide and synthetic yellow iron oxide. The 75 mg tablets also contain FD&C yellow #6 lake. The 100 mg tablets also contain D&C red #33 lake and FD&C red #40 lake. The 150 mg tablets also contain FD&C blue #2 lake and FD&C yellow #6 lake.</Description>
</NDC>
<NDC>
<NDCCode>16590-019-90</NDCCode>
<PackageDescription>90 TABLET, FILM COATED in 1 BOTTLE (16590-019-90)</PackageDescription>
<NDC11Code>16590-0019-90</NDC11Code>
<ProductNDC>16590-019</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Amoxicillin And Clavulanate Potassium</ProprietaryName>
<NonProprietaryName>Amoxicillin And Clavulanate Potassium</NonProprietaryName>
<DosageFormName>TABLET, FILM COATED</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>20110125</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA065101</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>AMOXICILLIN; CLAVULANATE POTASSIUM</SubstanceName>
<StrengthNumber>500; 125</StrengthNumber>
<StrengthUnit>mg/1; mg/1</StrengthUnit>
<Pharm_Classes>beta Lactamase Inhibitor [EPC],beta Lactamase Inhibitors [MoA]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Amoxicillin and clavulanate potassium tablets are indicated in the treatment of infections caused by susceptible strains of the designated organisms in the conditions listed below.</IndicationAndUsage>
<Description>Amoxicillin and clavulanate potassium tablets are an oral antibacterial combination consisting of the semisynthetic antibiotic amoxicillin and the β-lactamase inhibitor, clavulanate potassium (the potassium salt of clavulanic acid). Amoxicillin is an analog of ampicillin, derived from the basic penicillin nucleus, 6-aminopenicillanic acid. Chemically, amoxicillin is ( 2S,5R,6R)-6-[(R)-(-)-2-Amino-2-(p-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate and has the following structural formula. C 16H19N3O5S·3H2O M.W. 419.46. Clavulanic acid is produced by the fermentation of Streptomyces clavuligerus. It is a β-lactam structurally related to the penicillins and possesses the ability to inactivate a wide variety of β-lactamases by blocking the active sites of these enzymes. Clavulanic acid is particularly active against the clinically important plasmid-mediated β-lactamases frequently responsible for transferred drug resistance to penicillins and cephalosporins. Chemically, clavulanate potassium is potassium (Z)-(2R,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]-heptane-2-carboxylate, and has the following structural formula. C 8H8KNO5 M.W. 237.25. Each tablet contains 500 mg or 875 mg amoxicillin as the trihydrate and 125 mg clavulanic acid as the potassium salt. Each amoxicillin and clavulanate potassium tablet contains 0.63 mEq potassium.</Description>
</NDC>
<NDC>
<NDCCode>16590-022-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE, PLASTIC (16590-022-90)</PackageDescription>
<NDC11Code>16590-0022-90</NDC11Code>
<ProductNDC>16590-022</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Acetaminophen, Butalbital And Caffeine</ProprietaryName>
<NonProprietaryName>Acetaminophen, Butalbital And Caffeine</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19880216</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA089536</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>ACETAMINOPHEN; BUTALBITAL; CAFFEINE</SubstanceName>
<StrengthNumber>325; 50; 40</StrengthNumber>
<StrengthUnit>mg/1; mg/1; mg/1</StrengthUnit>
<Pharm_Classes>Barbiturate [EPC],Barbiturates [Chemical/Ingredient],Central Nervous System Stimulant [EPC],Central Nervous System Stimulation [PE],Methylxanthine [EPC],Xanthines [Chemical/Ingredient]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Butalbital, acetaminophen and caffeine tablets are indicated for the relief of the symptom complex of tension (or muscle contraction) headache. Evidence supporting the efficacy and safety of this combination product in the treatment of multiple recurrent headaches is unavailable. Caution in this regard is required because butalbital is habit-forming and potentially abusable.</IndicationAndUsage>
<Description>Each tablet, for oral administration, contains. Butalbital, USP..................50 mg. Acetaminophen.................325 mg. Caffeine, USP...................40 mg. In addition, each tablet contains the following inactive ingredients: FD and C Lake Blue #1, Magnesium Stearate, Microcrystalline Cellulose, Colloidal Silicon Dioxide, and Sodium Starch Glycolate. Butalbital (5-allyl-5-isobutylbarbituric acid), a white, odorless, crystalline powder having a slightly bitter taste, is a short to intermediate-acting barbiturate. It has the following structural formula. Acetaminophen (4'-hydroxyacetanilide), a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula.</Description>
</NDC>
<NDC>
<NDCCode>16590-023-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE (16590-023-90)</PackageDescription>
<NDC11Code>16590-0023-90</NDC11Code>
<ProductNDC>16590-023</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Acetaminophen And Codeine</ProprietaryName>
<NonProprietaryName>Acetaminophen And Codeine Phosphate</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19880930</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA089805</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>ACETAMINOPHEN; CODEINE PHOSPHATE</SubstanceName>
<StrengthNumber>300; 30</StrengthNumber>
<StrengthUnit>mg/1; mg/1</StrengthUnit>
<DEASchedule>CIII</DEASchedule>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Acetaminophen and codeine phosphate tablets are indicated for the relief of mild to moderately severe pain.</IndicationAndUsage>
<Description>Acetaminophen and codeine is supplied in tablet form for oral administration. Acetaminophen, 4'-hydroxyacetanilide, a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula. Codeine phosphate, 7,8-didehydro-4,5α-epoxy-3-methoxy-17methylmorphinan-6α-ol phosphate (1:1) (salt) hemihydrate, a white crystalline powder, is a narcotic analgesic and antitussive. It has the following structural formula. Each 300 mg/30 mg Acetaminophen and Codeine Phosphate Tablet contains: Acetaminophen ......................................................................................................300 mg Codeine Phosphate ..................................................................................................30 mg. Each 300 mg/60 mg Acetaminophen and Codeine Phosphate Tablet contains: Acetaminophen ......................................................................................................300 mg Codeine Phosphate ..................................................................................................60 mg.</Description>
</NDC>
<NDC>
<NDCCode>16590-026-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE (16590-026-90)</PackageDescription>
<NDC11Code>16590-0026-90</NDC11Code>
<ProductNDC>16590-026</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Baclofen</ProprietaryName>
<NonProprietaryName>Baclofen</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19910918</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA072824</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>BACLOFEN</SubstanceName>
<StrengthNumber>10</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>GABA A Agonists [MoA],GABA B Agonists [MoA],gamma-Aminobutyric Acid-ergic Agonist [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Baclofen is useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen treatment will aid in restoring residual function. Baclofen may also be of some value in patients with spinal cord injuries and other spinal cord diseases. Baclofen is not indicated in the treatment of skeletal muscle spasm resulting from rheumatic disorders. The efficacy of baclofen in stroke, cerebral palsy, and Parkinson’s disease has not been established and, therefore, it is not recommended for these conditions.</IndicationAndUsage>
<Description>Baclofen USP is a muscle relaxant and antispastic, available as 10 mg and 20 mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. The structural formula is represented below. BACLOFEN STRUCTURE IIMAGE. Baclofen Tablets USP 10 mg and 20 mg contain the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone and starch (corn).</Description>
</NDC>
<NDC>
<NDCCode>16590-027-90</NDCCode>
<PackageDescription>90 TABLET in 1 BOTTLE (16590-027-90)</PackageDescription>
<NDC11Code>16590-0027-90</NDC11Code>
<ProductNDC>16590-027</ProductNDC>
<ProductTypeName>HUMAN PRESCRIPTION DRUG</ProductTypeName>
<ProprietaryName>Baclofen</ProprietaryName>
<NonProprietaryName>Baclofen</NonProprietaryName>
<DosageFormName>TABLET</DosageFormName>
<RouteName>ORAL</RouteName>
<StartMarketingDate>19910918</StartMarketingDate>
<MarketingCategoryName>ANDA</MarketingCategoryName>
<ApplicationNumber>ANDA072828</ApplicationNumber>
<LabelerName>STAT RX USA LLC</LabelerName>
<SubstanceName>BACLOFEN</SubstanceName>
<StrengthNumber>20</StrengthNumber>
<StrengthUnit>mg/1</StrengthUnit>
<Pharm_Classes>GABA A Agonists [MoA],GABA B Agonists [MoA],gamma-Aminobutyric Acid-ergic Agonist [EPC]</Pharm_Classes>
<Status>Deprecated</Status>
<LastUpdate>2018-02-07</LastUpdate>
<ProductNdcExcludeFlag>E</ProductNdcExcludeFlag>
<ListingRecordCertifiedThrough>20171231</ListingRecordCertifiedThrough>
<IndicationAndUsage>Baclofen is useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen treatment will aid in restoring residual function. Baclofen may also be of some value in patients with spinal cord injuries and other spinal cord diseases. Baclofen is not indicated in the treatment of skeletal muscle spasm resulting from rheumatic disorders. The efficacy of baclofen in stroke, cerebral palsy, and Parkinson’s disease has not been established and, therefore, it is not recommended for these conditions.</IndicationAndUsage>
<Description>Baclofen USP is a muscle relaxant and antispastic, available as 10 mg and 20 mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid. Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. The structural formula is represented below. BACLOFEN STRUCTURE IIMAGE. Baclofen Tablets USP 10 mg and 20 mg contain the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone and starch (corn).</Description>
</NDC>
</NDCList>