Lactulose — paediatric dose

Weight-based dosing for Lactulose in children. Category: GI.

Dose	1 mL/kg/dose (hepatic encephalopathy: titrate to 2-3 soft stools/day)
Per kg	1 mL/kg
Route	PO

Common questions

1 mL/kg/dose (hepatic encephalopathy: titrate to 2-3 soft stools/day). That is 1 mL/kg per dose.

Lactulose is given by PO.

Reviewed by Dr Santanu Ghosh — MBBS, MD Paediatrics (Army), IDPCCM (IAP, ICH Kolkata). Paediatrician and paediatric critical care specialist.

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.