Clonazepam is a benzodiazepine (ben-zoe-dye-AZE-eh-peen). It works by affecting the chemicals in the human brain that may be unbalanced. Clonazepam 2 mg Tablets come under the brand names Rivotril and Kolonopin. Clonazepam is used to treat epilepsy, seizure disorders, or panic disorders. It is also used to treat movement disorders, muscle spasms, and restless legs syndrome. Clonazepam may sometimes be recommended for purposes not listed in this medication guide.