Anti-androgens. Androgen receptor–blocking drugs such as spironolactone (Aldactone) and finasteride (Propecia) are not approved for the treatment of female pattern hair loss, and there is little reliable evidence that they are effective. However, some case studies suggest that women who don't respond to minoxidil may benefit from the addition of spironolactone. In the relatively uncommon cases where there is an excess of androgen, a clinician may prescribe 100 to 200 milligrams of an androgen receptor–blocking drug daily, together with an oral contraceptive for women of reproductive age. (A woman taking one of these drugs should not become pregnant because they can cause genital abnormalities in a male fetus.) Possible side effects include weight gain, loss of libido, depression, and fatigue.
Unfortunately, there has been little research into female-pattern baldness. The AHLA says, "While many drugs may work to some degree for women, doctors are reluctant to prescribe them, and drug companies aren't exactly falling over themselves to test existing or new drugs specifically for their ability to prevent and treat female-pattern baldness." The only FDA-approved treatment for hair loss in women is 2 percent minoxidil, although some doctors will prescribe other drugs off-label.
According to practitioners of traditional Chinese medicine, hair health is tied to two things: kidney energy and the blood, which nourish the hair. The solution: acupuncture and Chinese herbs. While there isn't a lot of hard science to back this up, Maureen Conant, a TCM practitioner at Full Bloom Acupuncture in Seattle, says that she's seen women's hair stop falling out and then gradually regenerate after a few months of weekly treatments.