RU 58841

RU 58841 is a specific androgen receptor antagonist or anti-androgen used as a topical treatment for acne, androgenetic alopecia and hirsutism. RU 58841 displays high affinity for the hamster prostate and flank organ (F.O.) androgen receptors. In vivo, when topically applied, it exerts a potent dose-dependent regression of F.O. area at a dose as low as 1 microgram/animal while being devoid of antiandrogenic activity on deep accessory sex organs and of any effect on testosterone level up to 100 micrograms/animal. RU 58841 has a dramatic effect on hair regrowth.