About erythromycin
Macrolide antibiotic
Used for
- Treats certain bacterial respiratory, skin, and ear infections.
- Treats some sexually transmitted and other bacterial infections.
- Prevents rheumatic fever recurrence in selected patients.
Usual adult dose
Usually 250–500 mg every 6 hours, depending on infection and formulation.
Usual dose in children
Usually 30–50 mg/kg daily in divided doses; the infection determines duration and maximum dose.
Common side effects
- Nausea, vomiting, abdominal cramps, or diarrhea
- Liver problems, including jaundice
- Allergic reactions or skin rash
- Rarely, abnormal heart rhythm
Important warnings
- Does not treat viral infections such as colds or flu.
- Can prolong the heart’s electrical rhythm and rarely cause dangerous arrhythmias.
- Seek assessment for severe or persistent diarrhea.
- Dose and schedule vary by infection and erythromycin formulation.
Pregnancy
Generally considered usable when needed; choice depends on the infection and formulation.
Breastfeeding
Usually compatible; monitor the infant for diarrhea, rash, or irritability.
Interactions
- Can interact with medicines such as simvastatin, colchicine, and some heart-rhythm drugs.
- May increase effects of warfarin and certain seizure medicines.
- Antacids and some medicines can affect absorption or blood levels.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.