Azithromycin, which is used to treat certain bacterial infections, can cause side effects . Learn about its more common, mild, and serious side effects and how to manage them. Azithromycin oral tablet is a prescription drug used to treat certain bacterial infections. Learn about the common, mild, and serious side effects it can cause. Azithromycin is an effective medication for bacterial infections. But there are several common and serious side effects you should know about. Learn about Azithromycin, its uses, dosage, side effects , interactions, and benefits. Get reliable guidance from Apollo Hospitals.