Fosphenytoin — paediatric dose
Weight-based dosing for Fosphenytoin in children. Category: Anticonvulsant.
| Dose | 20 mg PE/kg |
|---|---|
| Per kg | 20 mg/kg |
| Maximum | 1000 mg |
| Route | IV/IM |
| Frequency | load |
Clinical notes
Dosed in phenytoin-equivalents (PE). Faster, safer infusion.
Common questions
What is the dose of Fosphenytoin in children?
20 mg PE/kg. That is 20 mg/kg per dose.
What is the maximum Fosphenytoin dose for a child?
The maximum single dose is 1000 mg. Weight-based calculation should never exceed this ceiling.
How is Fosphenytoin given?
Fosphenytoin is given by IV/IM, 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.