TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

DILANTIN-125

PHENYTOIN Cytochrome P450 1A2 Inducers
Neurology Approved 1953-01-06
1
Indication
--
Phase 3 Trials
73
Years on Market

Details

Status
Prescription
First Approved
1953-01-06
Routes
ORAL
Dosage Forms
SUSPENSION

Companies

Active Ingredient: PHENYTOIN

DILANTIN-125 Approval History

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What DILANTIN-125 Treats

2 indications

DILANTIN-125 is approved for 2 conditions since its original approval in 1953. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Tonic-Clonic Seizures
  • Psychomotor Seizures
Source: FDA Label
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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

DILANTIN-125 FDA Label Details

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Indications & Usage

FDA Label (PDF)

DILANTIN is indicated for the treatment of tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures. DILANTIN is indicated for the treatment of tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.