Benperidol is used to control disturbing, socially unacceptable, sexual behaviour that is caused by mental illness.

Unless your doctor tells you otherwise, you should not suddenly stop taking this medicine, even if you feel better and think you don't need it any more. This is because the medicine controls the symptoms of mental illness but doesn't actually cure it. This means that if you suddenly stop treatment your illness could come back. Stopping the medicine suddenly may also rarely cause withdrawal symptoms such as nausea, vomiting or difficulty sleeping. When treatment with this medicine is stopped, it should usually be done gradually, following the instructions given by your doctor.