Cyproterone belongs to a group of medicines known as anti-androgens. This means that it blocks the actions of male sex hormones called androgens, and it also reduces the amount of male hormones your body produces. This anti-androgen action can be helpful in the treatment of two different conditions - in the treatment of prostate cancer, and to control the sex drive in men with hypersexuality.
This is a companion discussion topic for the original article at https://patient.info/medicine/cyproterone-an-anti-androgen-for-men-cyprostat-androcur