Drug updated on 9/15/2023

Dosage FormTablet (oral; 50 mg, 100 mg, 150 mg, 200 mg), Injection (intravenous; 200 mg/20 mL), Solution (oral; 10 mg/mL)
Drug ClassUnknown mechanism of action
Ongoing and Completed


  • Treatment of partial-onset seizures in patients 1 month of age and older.
  • Treatment of adjunctive therapy in the treatment of primary generalized tonic-clonic seizures in patients 4 years of age and older.