Erythromycin suspension (Emzor) is indicated for the treatment of various bacterial infections; contraindicated in patients with a known hypersensitivity to erythromycin or other macrolide antibiotics; potential side effects include gastrointestinal disturbances, rash, and liver enzyme alterations; and it may interact with drugs such as warfarin, theophylline, and certain statins, increasing the risk of adverse effects.