Cyproterone Acetate (Androcur) is used to treat hair loss in women. It works by blocking the effects of male hormones (androgens), like testosterone. It is available by prescription for women only. It has been used for a long time in women to treat hair loss.
The side effects can include breast tenderness; irregular menstrual periods and rarely it can cause depression or lower mood.
This medication is NOT to be taken if you are pregnant (or intending to become pregnant) or breast-feeding.