According to this, it's not indicated for hair loss in women.
http://www.hairinfo.org/en/learning/disorders/andro.html

Finasteride has been shown to produce significant results in the treatment
of male AGA. It works by blocking 5-alpha reductase, which is responsible
for the conversion of testosterone to dihydrotestosterone (DHT). DHT is an
important factor in the cause of AGA. Finasteride reversed hair loss in 66%
of men - 30% experienced mild regrowth, 31% experienced moderate regrowth,
5% experienced great regrowth - and stopped hair loss in 83% of men after
two years of follow-up.

Finasteride is not indicated in women. Instead, the use of a systemic
antiandrogen such as spironolactone (Aldactone®) 50 to 200 mg per day,
cyproterone acetate (Androcur®), or flutamide (Eulexin®) may have some
benefit in reducing the amount of hair thinning.

J

ok I guess the question is too complex.
thanks anyway

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