The body for a significant period of time after the required doses. Azithromycin works against several different bacteria, especially chlamydia and streptococcus. The side effects of Azithromycin are normally well tolerated. Azithromycin is in a class of medications called macrolide antibiotics which works by stopping the growth of bacteria. Taking this medicine at the same time as antacids that contain aluminum or magnesium. Azithromycin is in a class of medications called macrolide antibiotics which works by stopping the growth of bacteria. The ability of composing proteins. Taking this medicine at the same time as antacids that contain aluminum or magnesium.