is effective in pelvic infections, urethritis and cervicitis caused by chlamydia and gonococci.
More active against respiratory infections due to H. influenzae and Moraxella catarrhalis than erythromycin but less active against streptococci. Azithromycin is the preferred therapy for urethritis caused by Chlamydia trachomatis. Mycobacterium avium complex (MAC) is preferentially treated with a macrolide-containing regimen, including clarithromycin or azithromycin.