is azithromycin a penicillin or sulfa drug is azithromycin a penicillin group is azithromycin a penicillin is azithromycin a penicillin or amoxicillin is azithromycin a penicillin or. cephalosporin is azithromycin a penicillin drug is azithromycin a penicillin allergy is azithromycin a penicillin derivative is azithromycin a penicillin product is azithromycin a penicillin family