Cyproterone acetate is used to reduce excessive sex drive in men and to treat pronounced sexual aggression. It is also prescribed for severe hirsutism in woman of childbearing age and for androgenetic alopecia in women. Cyproterone acetate exerts its effects by blocking the binding of dihydrotestosterone (DHT) to its receptors.
Cyproterone acetate is not available in the U.S. Doctors consider it one of the last resorts for treating female pattern hair loss because of its possible toxicity and long-term side effects. As with any drug, side effects other than those listed on the package may occur. Contact your doctor if you notice a side effect that is unusual or particularly bothersome.