Off Patent
July 2026

Fycompa

perampanel

Catalyst Pharmaceuticals Inc

Suspension (oral) · NDA 208277

Last listed protection ended
July 1, 2026

The FDA listed 2 patents for Fycompa, and this is the day the last one ended. It is not the date a generic goes on sale.

Patents and exclusivities

  1. Ended
    Patent 6,949,571
    Claims the drug substance, the drug product and a use (U-106, U-2088, U-2089, U-2428, U-2429)
  2. Ended
    Patent 8,772,497
    Claims the drug substance