Antiandrogens in the treatment of acne and hirsutism

Antiandrogens have been found to be effective in the treatment of acne and hirsutism. Cyproterone acetate has been used in Europe for many years, but in the United States it has only been approved as an orphan drug to treat severe hirsutism. Spironolactone is approved in the United States for its antialdosterone effect but not for its antiandrogenic effect, although it is widely used for the latter purpose. While cyproterone is a more effective drug than spironolactone, it is more likely to produce undesirable side effects.