Wednesday, July 8, 2026

Drug profile · INN

phenytoin sodium

phenytoin sodium (DIPHENYLAN SODIUM) is a sodium channel alpha subunit blocker. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

FDA: approved
US status approved
Patents linked 0
Pipeline programs 3
News articles 0
Drug details — phenytoin sodium
US status
approved
Class
Route
INJECTION
Patents
0
Programs
3
Data quality
0.89

Quick answer

phenytoin sodium (DIPHENYLAN SODIUM) is a sodium channel alpha subunit blocker. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

Key facts

INN phenytoin sodium
Brand DIPHENYLAN SODIUM
Mechanism Sodium channel alpha subunit blocker
Target Sodium channel alpha subunit
Route INJECTION
Formulation CAPSULE

Mechanism of action

Sodium channel alpha subunit blocker

Primary target: Sodium channel alpha subunit

Approval history

Authority Status Date
FDA approved

Pipeline programs

  1. Prompt aflibercept Phase 3 · Regeneron UK · Diabetic Macular Edema
  2. Prompt aflibercept Phase 3 · Regeneron UK · Diabetic Retinopathy
  3. Single Site Pacing Phase 2 · Rhythm Pharmaceuticals Netherlands · Acute Myocardial Infarction

Related & competitor drugs

  1. carbamazepine Sodium channel alpha subunit blocker
  2. disopyramide phosphate Sodium channel alpha subunit blocker
  3. eslicarbazepine acetate Nervous system (N03)
  4. fosphenytoin sodium Sodium channel alpha subunit blocker
  5. lacosamide Nervous system (N03)
  6. lamotrigine Sodium channel alpha subunit blocker

Frequently asked questions

What is phenytoin sodium?

phenytoin sodium (DIPHENYLAN SODIUM) is a sodium channel alpha subunit blocker. Associated with Regeneron Ireland Designated Activity Company (DAC). Route of administration: injection. Current US regulatory status: approved.

What is the brand name for phenytoin sodium?

DIPHENYLAN SODIUM is a marketed brand name for phenytoin sodium. Check FDA Drugs@FDA for the current US label holder and prescribing information.

What is the US approval status of phenytoin sodium?

phenytoin sodium has approved status in the United States according to our Drugs@FDA-derived records. Verify on the official FDA label before clinical or commercial decisions.