Phenytoin
Stabilizes neuronal membranes by decreasing sodium influx during nerve impulses. Requires careful monitoring of blood levels.
Dosage by Body Weight
Maintenance dose: 5-8 mg/kg/day divided into two or three doses. Maintain good oral hygiene to prevent gum overgrowth.
- Body Weight
- 10-20 kg
- Dose
- 50 mg to 100 mg total daily
- Frequency
- Divided into 2 doses
- Tracking Notes
- Consistency with the brand and formulation is critical.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| 10-20 kg | 50 mg to 100 mg total daily | Divided into 2 doses | Consistency with the brand and formulation is critical. |
Formulation
Purpose
Antiepileptic for generalized tonic-clonic and focal seizures.
Generic Name
Phenytoin SodiumBranded Drug Names
Phenytoin is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:
Scheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.
Alternatives
Safety Advice
Alcohol
UNSAFEPhenytoin: Alcohol can significantly increase drowsiness, dizziness, breathing problems, or seizure risk. Avoid alcohol unless a specialist says otherwise.
Pregnancy
CAUTIONPhenytoin: Use in pregnancy only under specialist advice because seizure control and fetal risks must be carefully balanced.
Breast Feeding
SAFE IF PRESCRIBEDPhenytoin: May pass into breast milk and can cause infant drowsiness or feeding issues. Use only with healthcare provider guidance.
Driving
CAUTIONPhenytoin: Can cause drowsiness, slowed reaction time, dizziness, or blurred vision. Avoid driving until you know how it affects you.
Liver
CAUTIONPhenytoin: Some anti-seizure medicines can affect liver function and may require blood tests or dose adjustments.
Kidney
CAUTIONPhenytoin: Some anti-seizure medicines require dose adjustment in kidney impairment. Use under medical supervision.