Erythromycin — Drug Interactions, Alcohol & Pregnancy Guide

Last reviewed: · Source: US FDA drug label database

About Erythromycin

Erythromycin is an older macrolide antibiotic, often used as the penicillin-allergy alternative and in pregnancy. It causes more GI side effects than azithromycin and has many drug interactions via CYP3A4 inhibition.

Also sold as: Erymax, Erythrocin, Erythroped

Drug class Macrolide antibiotic
Used for Chest infections, Skin infections, Chlamydia, Acne, Pertussis, Penicillin-allergy alternative
Max adult dose 250-500mg four times daily
OTC in UK Prescription only

Erythromycin and Alcohol

🟡 USE WITH CAUTION

Avoid alcohol with erythromycin — alcohol may increase erythromycin blood levels and worsens GI side effects which are already very common.

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