Phenobarbitone — paediatric dose
Weight-based dosing for Phenobarbitone in children. Category: Anticonvulsant.
| Dose | 20 mg/kg over 20 min |
|---|---|
| Per kg | 20 mg/kg |
| Maximum | 1000 mg |
| Route | IV |
| Frequency | load |
Clinical notes
Respiratory depression esp. with benzodiazepines. Neonatal 1st-line.
Common questions
What is the dose of Phenobarbitone in children?
20 mg/kg over 20 min. That is 20 mg/kg per dose.
What is the maximum Phenobarbitone dose for a child?
The maximum single dose is 1000 mg. Weight-based calculation should never exceed this ceiling.
How is Phenobarbitone given?
Phenobarbitone is given by IV, load.
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.