Clonazepam is an anticonvulsant. It is also used against states of fear, it is an anxiolytic. It is a benzodiazepine. Benzodiazepines are very addictive. Clonazepan is used to treat certain forms of epilepsy. It is also used to treat certain disorders of the sleep, such as sleepwalking. In certain cases it is used as an off-label drug in psychiatry.