Clonazepam[2] (trade name Klonopin) is a long-acting psychoactive substance of the benzodiazepine class which produces anxiolytic, anticonvulsant, muscle relaxant, amnesic, sedative, depressant and hypnotic effects.[3] It is commonly used and FDAClonazepam, Klonopin, "K-Pins", Rivotril....