Vancomycin hydrochloride for injection, USP is a lyophilized powder, for preparing intravenous (IV) infusions, in ADD-Vantage® vials each containing the equivalent of 500 mg, 750 mg or 1 g vancomycin base. 500 mg of the base are equivalent to 0.34 mmol, 750 mg of the base are equivalent to 0.51 mmol, and 1 g of the base are equivalent to 0.67 mmol. When reconstituted with Sterile Water for Injection to a concentration of 50 mg/mL, the pH of the solution is between 2.5 and 4.5. This product is oxygen sensitive. Vancomycin Hydrochloride for Injection, USP should be administered intravenously in diluted solution (see DOSAGE AND ADMINISTRATION).
Vancomycin is a tricyclic glycopeptide antibiotic derived from Amycolatopsis orientalis (formerly Nocardia orientalis). The chemical name for vancomycin hydrochloride is 3S- [3R*,6S*(S*),7S*,22S*,23R*,26R*,36S*,38aS*]]-3-(2-Amino-2-oxoethyl)-44-[[2-O-(3-amino-2,3,6-trideoxy-3-C-methyl-α-L-lyxo-hexopyranosyl)-ß-D-glucopyranosyl]oxy]-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-[[4-methyl-2-(methylamino)-1-oxopentyl]amino]-2,5,24,38,39-pentaoxo-22H-8,11:18,21-dietheno-23,36- (iminomethano)-13,16:31,35-dimetheno-1H,16H-[1,6,9]oxadiazacyclohexadecino[4,5- m][10,2,16]-benzoxadiazacyclotetracosine-26-carboxylic acid, monohydrochloride. The molecular formula is C66H75Cl2N9O24 ∙ HCl and the molecular weight is 1,485.74. Vancomycin Hydrochloride has the following structural formula:
The solutions contain no bacteriostat, antimicrobial agent (except vancomycin) or buffer and are intended for use only as a single-dose injection only with the ADD-Vantage Flexible Diluent Container.