Rivotril is a brand name for the medication clonazepam, which is a benzodiazepine drug. Clonazepam is primarily prescribed for the treatment of various seizure disorders, panic disorder, and certain types of movement disorders. Clonazepam is commonly used as an adjunctive therapy in the treatment of epilepsy, particularly for certain types of seizures, such as absence seizures (petit mal) and myoclonic seizures.