SPL Set ID: 6a22beb6-57e8-480d-97b5-44d9dbfabf93
1 drug(s) with this SPL Set ID
Azithromycin for injection, USP contains the active ingredient azithromycin, an azalide, a subclass of macrolide antibacterial drug, for intravenous injection. Azithromycin has the chemical name (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R) -13[(2,6-dideoxy-3- C -methyl-3- O -methyl-α- L-ribo -hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-hepta-methyl-11[[3,4,6-trideoxy-3-(dimethylamino)-β- D - xylo -hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one. Azithromycin is derived from erythromycin; however, it differs chemically from erythromycin in that a methyl-substituted nitrogen atom is incorporated into the lactone ring. Its molecular formula is C 38 H 72 N 2 O 12 , and its molecular weight is 749. Azithromycin has the following structural formula: Azithromycin, as the monohydrate, is a white or almost white crystalline powder with a molecular formula of C 38 H 72 N 2 O 12 ·H 2 O and a molecular weight of 767.02. Azithromycin for injection, USP consists of azithromycin monohydrate, USP and the following inactive ingredients: citric acid and sodium hydroxide. Azithromycin for injection, USP is supplied in lyophilized form in a 10 mL vial equivalent to 500 mg of azithromycin for intravenous administration. Reconstitution, according to label directions, results in approximately 5 mL of azithromycin for intravenous injection with each mL containing azithromycin monohydrate equivalent to 100 mg of azithromycin. spl-azithromycin-structure