Azithromycin

Azithromycin is a semisynthetic azalide antibiotic, a subclass of macrolide antibiotics. Azalides are distinguished from other macrolides by the addition of nitrogen at position 9a of the lactone ring. Azithromycin differs structurally from erythromycin by a methyl-substituted nitrogen atom incorporated into the macrolide ring. [#] Azithromycin has a broader spectrum of activity than that of erythromycins or clarithromycin. [#]
Source: Aids Info Drugs - Category: Drugs & Pharmacology Source Type: research