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Description
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Vancomycin hydrochloride for injection, USP, contains the hydrochloride salt of vancomycin, a tricyclic glycopeptide antibacterial derived from Amycolatopsis orientalis (formerly Nocardia orientalis). The chemical name for vancomycin hydrochloride, USP is (S a)- (3 S,6 R,7 R,22 R,23 S,26 S,36 R,38a R)-44-[[2- O-(3-Amino-2,3,6-trideoxy-3- C-methyl-α-L-lyxo-hexopyranosyl)-β-D-glucopyranosyl]oxy]-3-(carbamoylmethyl)-10,19-dichloro- 2,3,4,5,6,7,23,24,25,26,36,37,38,38a-tetradecahydro-7,22,28,30,32-pentahydroxy-6-[(2 R)-4- methyl-2-(methylamino)valeramido]-2,5,24,38,39-pentaoxo-22 H-8,11:18,21-dietheno-23,36- (iminomethano)-13,16:31,35-dimetheno-1 H,16 H-[l,6,9]oxadiazacyclohexadecino[4,5- m][10,2,16]-benzoxadiazacyclotetracosine-26-carboxylic acid, monohydrochloride. The molecular formula is C 66H 75Cl 2N 9O 24 HCl and the molecular weight is 1,485.71. Vancomycin hydrochloride, USP has the following structural formula:. Vancomycin hydrochloride for injection, USP is a sterile off-white to light tan colored lyophilized plug or powder for injection. Vancomycin hydrochloride for injection, USP is supplied in single-dose vials, containing 1.28 g or 1.54 g of vancomycin hydrochloride, USP equivalent to 1.25 g or 1.5 g of vancomycin base. The lyophilized powder is reconstituted with sterile water for injection, USP which forms a clear, colorless or light to dark tan solution and subsequently diluted prior to intravenous administration [see Dosage and Administration (2.5)].
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