Brivaracetam (Briviact) is an anticonvulsant used to treat epilepsy, primarily for partial-onset seizures (involving one part of the brain) in adults and children (from 1 month old) and sometimes for generalized seizures, working by reducing abnormal electrical activity in the brain. It's also used intravenously for emergency situations like status epilepticus. It's similar to levetiracetam but often has fewer psychiatric side effects.