Yes, this drug helps in treating female hair loss. Cyproterone acetate has:

• Antiandrogenic effect 
• Progestational effect 
• Antigonadotropic effect

That is the reason why this drug is used to in treating chronic hirsutism in women as well as androgenic alopecia.

According to the available studies, approximately 10 percent of the menopausal women have the hair loss problems. And around 50 to 65 percent of females have symptoms of androgenic alopecia. Some of the studies are indicative of usefulness of this drug in treating androgenic alopecia in women which means hair loss pattern in women. This is considered as anti-hormonal therapy. This drug with combination or without combination with other drugs can give satisfactory results for the female patients of androgenic alopecia provided that the use is continuous for a longer time. There will be slowing down of hair loss progression and re-growth after using for around a year or so. This drug works as an anti androgen on the tissues thus blocking the androgen receptors. Apart from treating female hair loss or alopecia, it is also helpful in treatment of acne, hirsutism and regularizes menses. It is important for the patients to know about the benefits and also the risks involved. And this medication must be started only after a perfect risk benefit analysis.