Clonazepam is a prescription medication that belongs to the benzodiazepine class of drugs. It is commonly used to treat seizure disorders, panic attacks, and certain types of anxiety. Clonazepam works by enhancing the activity of gamma-aminobutyric acid (GABA), a chemical in the brain that produces a calming effect on the nervous system. This helps to reduce excessive brain activity that can lead to seizures or feelings of anxiety.