Klonopin (Clonazepam) is an oral prescription medicine with a long half-life used to treat and manage seizures and epilepsy in adults and children. For example, absence seizures or Lennox-Gastaut syndrome. Furthermore, Clonazepam is a benzodiazepine medication that aids in treating panic attacks (including agoraphobia). Clonazepam is a GABA-A receptor agonist that is an anticonvulsant, anxiolytic, and muscle relaxant to manage seizures and manic episodes.