Doctors & Nurses

Parents & Patients



Erythromycin is an antibiotic that is commonly used to treat infections of the chest, ear, nose and throat, skin and other parts of the body.

When patients are allergic to penicillin, they are often given erythromycin instead but there are also occasions when erythromycin is given first or alongside a penicillin.

One of the main side effects is irritation of the stomach and some patients may experience feeling sick, vomiting or diarrhoea. Other side effects are listed below.

It is usually given four times per day.

If your child vomits less than 30 minutes after being given a dose of erythromycin you should repeat the dose. If more than 30 minutes has passed you can assume that the medicine has been absorbed.

Erythromycin should be used with caution in children under 2 weeks of age because of the risk of development of pyloric stenosis. It should also be avoided in patients with acute porphyria.

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