Gonadotropin-releasing hormone agonist (GnRH-A) in hirsutism.

Twenty-five women presenting moderate-severe PCOS-dependant hirsuitism were treated for 6 months with GnRH-A (Group A) or pill-combined and GnRH (Group B). Both therapeutic regimens significantly decreased androgen plasma levels. Hair diameter reduced in Group A by 22-34% and in Group B by 25-35%, while hirsuitism score respectively decreased by 22 and 24%. Clinical results, overlapping in the two groups, prove that GnRH-A are active in hirsuitism. Side effects, however, especially a decreased bone density (3.9%) in Group A make it necessary an association with oral contraceptive.