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Description
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Memantine and donepezil hydrochlorides extended-release capsules contain memantine, an orally active NMDA receptor antagonist, as the hydrochloride salt and donepezil, a reversible inhibitor of the enzyme acetylcholinesterase, as the hydrochloride salt. Memantine Hydrochloride, USP. The chemical name for memantine hydrochloride, USP is 1-amino-3,5-dimethyladamantane hydrochloride with the following structural formula. The molecular formula is C12H21N HCl and the molecular weight is 215.76. Memantine hydrochloride, USP occurs as a fine white to off-white powder. Donepezil Hydrochloride, USP. The chemical name for donepezil hydrochloride, USP is (±)-2-[(1-benzyl- 4-piperidyl) methyl]-5,6-dimethoxy-1-indanone hydrochloride. The molecular formula is C24H29NO3HCl and the molecular weight is 415.95. Donepezil hydrochloride, USP is off white to cream coloured powder. Memantine and donepezil hydrochlorides extended-release capsules contain 7 mg memantine hydrochloride extended-release and 10 mg donepezil hydrochloride (7 mg/10 mg), 14 mg memantine hydrochloride extended-release and 10 mg donepezil hydrochloride (14 mg/10 mg), 21 mg memantine hydrochloride extended-release and 10 mg donepezil hydrochloride (21 mg/10 mg) or 28 mg memantine hydrochloride extended-release and 10 mg donepezil hydrochloride (28 mg/10 mg). Memantine and donepezil hydrochlorides extended-release capsules (7 mg/10 mg) contain the following inactive ingredients: colloidal silicon dioxide, ethyl cellulose, hydroxypropyl cellulose, hypromellose, sugar spheres (corn starch, sucrose), talc and triethyl citrate. The hard gelatin capsules contain D&C yellow no. 10, FD&C blue no. 1, gelatin, sodium lauryl sulfate and titanium dioxide. The black monogramming ink contains black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, shellac, strong ammonia solution and purified water. Memantine and donepezil hydrochlorides extended-release capsules (14 mg/10 mg) contain the following inactive ingredients: colloidal silicon dioxide, ethyl cellulose, hydroxypropyl cellulose, hypromellose, sugar spheres (corn starch, sucrose), talc and triethyl citrate. The hard gelatin capsules contain D&C yellow no.10, FD&C blue no. 1, gelatin, sodium lauryl sulfate and titanium dioxide. The white monogramming ink contains butyl alcohol, dehydrated alcohol, isopropyl alcohol, sodium hydroxide, propylene glycol, povidone, shellac and titanium dioxide. Memantine and donepezil hydrochlorides extended-release capsules (21 mg/10 mg) contain the following inactive ingredients: colloidal silicon dioxide, ethyl cellulose, hydroxypropyl cellulose, hypromellose, sugar spheres (corn starch, sucrose), talc and triethyl citrate. The hard gelatin capsules contain D&C yellow no. 10, FD&C red no. 40, gelatin, sodium lauryl sulfate and titanium dioxide. The black monogramming ink contains black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, shellac, strong ammonia solution and purified water. Memantine and donepezil hydrochlorides extended-release capsules (28 mg/10 mg) contain the following inactive ingredients: colloidal silicon dioxide, ethyl cellulose, hydroxypropyl cellulose, hypromellose, sugar spheres (corn starch, sucrose), talc and triethyl citrate. The hard gelatin capsules contain D&C yellow no.10, FD&C red no. 40, gelatin, sodium lauryl sulfate and titanium dioxide. The black monogramming ink contains black iron oxide, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, purified water, shellac and strong ammonia solution.
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