Is Erythromycin a Penicillin?

Erythromycin is an antibiotic. It can be taken by people who are allergic to penicillin. Space your doses out evenly over the day and complete the full course of this antibiotic, even if you feel your infection has cleared up. The most common side-effects are feeling sick (nausea) and tummy (abdominal) discomfort.

What class of antibiotic is erythromycin?

Erythromycin is in a class of medications called macrolide antibiotics. It works by stopping the growth of bacteria. Antibiotics such as erythromycin will not work for colds, flu, or other viral infections.

Is erythromycin in the same class as penicillin?

This medicine is also used to prevent recurrent attacks of rheumatic fever in patients who have had an allergic reaction to penicillin or sulfa drugs. Erythromycin belongs to the class of medicines known as macrolide antibiotics. It works by killing bacteria or preventing their growth.