What Is Clonazepam? Clonazepam is an antiepileptic medicine used to treat seizures, panic attacks, and the movement disorder akathisia. Clonazepam is primarily used to treat status epilepticus. It is a sedative that belongs to the benzodiazepine class and works by calming your nerves. It is available as both oral and deteriorating tablets. How Does Clonazepam Work? Clonazepam produces gamma-aminobutyric acid (GABA), which transmits messages throughout the central nervous system. If you require more GABA in your body, your body will become energized, which will cause anxiety attacks. When you take Clonazepam, GABA levels in your body rise, resulting in fewer bouts of anxiety and seizures.