Perampanel is used to prevent seizures.
How Perampanel works Perampanel is an antiepileptic medication that prevents seizures in patients with epilepsy by blocking a receptor in the brain known as the glutamate receptor. This action suppresses the abnormal and excessive activity of nerve cells in the brain.
Common side effects of Perampanel include dizziness, sleepiness, fatigue, falls, nausea, irritability, headache, abnormalities of voluntary movements, abdominal pain, and anxiety.