Hirsutism in women is usually caused by excessive levels of male sex hormones (androgens), according to background information from the National Institutes of Health.
The new review comes from experts including Brian Swiglo, MD, of the Mayo Clinic College of Medicine in Rochester, Minn.
For comparison, other women took placebo pills, which contain no medicine, instead of anti-androgen drugs.
The review shows that the women's hirsutism was somewhat reduced by anti-androgen treatment. But not all hirsute women got that benefit, note Swiglo and colleagues.
The reviewers write that they found "weak evidence" that anti-androgens are "mildly effective" in treating women's hirsutism.
"We need more research that can tell us if the women themselves notice an improvement," Swiglo says in a news release from The Endocrine Society.
The findings were presented yesterday in Toronto at The Endocrine Society's 89th annual meeting.
- Fighting the war on facial hair? Tell us what you're doing about it on WebMD's Skin Care: Share Your Tips message board.