Introduction: Perampanel--new mode of action and new option for patients with epilepsy.

With perampanel the first-in-class selective alpha-amino-3-hydroxy-5-methyl-4-isoxazolprepionic acid (AMPA) receptor antagonist has been finally approved for add-on treatment in patients with focal-onset seizures. This suggests additional therapeutic potential in hitherto difficult-to-treat epilepsies. Wiley Periodicals, Inc.