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Phenytoin

فنی‌توئین

⚠ Unverified

🧠 Neurology, headache & migraineHydantoin anticonvulsant

Market / country: 🇺🇸 USA

Dilantin (US)

🧮 Dose calculator

Disease / regimen

Epilepsy (complex partial / absence seizures) · Regimen source: FDA Phenytoin ER · 2.1 FDA Phenytoin susp · 2.2

• If controlled on 100 mg tid, 300 mg once daily may be considered (extended capsules only). Serum levels may be needed. Suspension: max 25 mL/day. FDA Phenytoin ER · 2 FDA Phenytoin susp · 2.2

Formulation

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🛡️ Safety & information

Contraindications

⛔ Hypersensitivity to phenytoin or other hydantoins; prior acute phenytoin hepatotoxicity; with delavirdine. FDA Phenytoin ER · 4

Formulations

100 mg extended-release capsule — capsule 🇺🇸 USA FDA Phenytoin ER · 3
125 mg/5 mL oral suspension — suspension 🇺🇸 USA FDA Phenytoin susp · 3

📚 Reference status for this drug

Shows which sources have references recorded for this drug and which do not.

FDA label (DailyMed)✅ Present
FDA Phenytoin ER · 3 FDA Phenytoin susp · 3 FDA Phenytoin ER · 2.1 FDA Phenytoin susp · 2.2 FDA Phenytoin ER · 2 FDA Phenytoin ER · 2.2 FDA Phenytoin ER · 4
UK SmPC (eMC / MHRA)❌ Not present
Published guideline❌ Not present
Licensed reference (medical school)❌ Not present
Iranian leaflet (IFDA)❌ Not present
Clinical review⚠ Unverified

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