PediRounds

Lorazepam — paediatric dose

Weight-based dosing for Lorazepam in children. Category: Sedation.

Dose0.05–0.1 mg/kg (seizure 0.1 mg/kg)
Per kg0.05–0.1 mg/kg
Maximum4 mg
RouteIV

Clinical notes

Max single 4 mg. First-line status epilepticus.

Common questions

What is the dose of Lorazepam in children?

0.05–0.1 mg/kg (seizure 0.1 mg/kg). That is 0.05–0.1 mg/kg per dose.

What is the maximum Lorazepam dose for a child?

The maximum single dose is 4 mg. Weight-based calculation should never exceed this ceiling.

How is Lorazepam given?

Lorazepam is given by IV.

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.