TLDR Finasteride helps 83% of men maintain or increase hair count.
Finasteride, also known as Propecia, has been launched in the US as the only oral therapy available for androgenetic alopecia (male pattern hair loss). Clinical studies involving 1215 men showed that after 2 years of therapy, 83% of men had the same or higher hair count, while only 17% had hair loss. The wholesale price of finasteride is $1.25 for one 1mg tablet, and the retail price is expected to be between $45 and $49 per month.
October 2000 in “Annals of Dermatology” Finasteride effectively treats hair loss in men with minimal side effects.
38 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Finasteride effectively improves hair growth and slows hair loss in men with male pattern baldness.
137 citations,
March 2006 in “Cns Drug Reviews” Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
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July 2012 in “Cambridge University Press eBooks” Androgens can both increase body hair and cause scalp hair loss.
1 citations,
January 2020 in “Skin appendage disorders” Finasteride is safe for hair loss treatment and doesn't increase high-grade prostate cancer risk.