PediRounds

Erythromycin — paediatric dose

Weight-based dosing for Erythromycin in children. Category: Antibiotic.

Dose10-12.5 mg/kg 6H
Per kg10–12.5 mg/kg
Maximum500 mg
RoutePO/IV
Frequency6H

Clinical notes

GI upset; CYP3A4 interactions; infantile pyloric stenosis risk in neonates.

Common questions

What is the dose of Erythromycin in children?

10-12.5 mg/kg 6H. That is 10–12.5 mg/kg per dose.

What is the maximum Erythromycin dose for a child?

The maximum single dose is 500 mg. Weight-based calculation should never exceed this ceiling.

How is Erythromycin given?

Erythromycin is given by PO/IV, 6H.

About this page

Compiled from standard paediatric references. Verify against a current formulary and your local protocol.

Spotted something wrong? Report an error on this page — corrections from clinicians are welcome and are reviewed before any change is published.

Last reviewed 2026-08-12.