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Finasteride

Generic Propecia

Treat male pattern baldness with FDA-approved finasteride (generic Propecia), a convenient once-daily pill, if prescribed.

Finasteride is a medication that interacts with certain male hormones that play a role in hair loss. It’s used at the 1 mg dose to treat male pattern baldness, as well as at higher doses to treat other conditions. Research has shown that finasteride prevented further hair loss in 83% of men who took it for 2 years and 66% of men had some hair regrowth.
Finasteride is part of a family of medications called 5-alpha reductase inhibitors. These drugs work by blocking the activity of 5-alpha reductase, an enzyme that converts testosterone to dihydrotestosterone (DHT), a potent androgen (male sex hormone). DHT contributes to male pattern baldness (also known as androgenetic alopecia)but using 5-alpha reductase inhibitors to block this enzyme can slow or reverse hair loss.
Propecia is the original brand name for 1 mg finasteride tablets for the treatment of male pattern hair loss.
Rarely, some people using oral finasteride may experience a reduced sex drive, or difficulty achieving or maintaining an erection. There may also be an increased risk of high-grade prostate cancer. Your Ro-affiliated provider can offer more information about potential side effects. See full Important Safety Information here.
Finasteride is for male pattern hair loss in men only, and is not for women or children. Pregnant women should not handle crushed or broken tablets due to fetal risk. For more information, see Important Safety Information.

How effective is finasteride?

83% of men

balding at the crown of the head saw no further hair loss with finasteride.*

The clinical results are in: Finasteride has been shown to be effective at preventing hair loss and even regrowing hair in some men.

*In clinical studies in men with hair loss at the crown of the head, 83% of men who used finasteride had no further hair loss after 2 years (vs. 28% in the placebo group).
Finasteride is for male pattern hair loss in men only, and is not for women or children. Pregnant women should not handle crushed or broken tablets due to fetal risk. For more information, see Important Safety Information.

Common questions

Finasteride is used in the 1 mg dose to treat male pattern baldness. Research has shown that finasteride prevented further hair loss in 83% of men who took it for 2 years and 66% of men had some hair regrowth.
  • Take finasteride exactly as your healthcare provider tells you to take it.
  • You may take finasteride with or without food.
  • If you forget to take finasteride, do not take an extra tablet. Just take the next tablet as usual.
  • Finasteride will not work faster or better if you take it more than once a day.
Short answer is yes. The same study from above that summarized the findings of 3 studies that evaluated the effects of finasteride showed that some men in the finasteride group has hair regrowth. The authors noted, “Based on standardized clinical photography, the chances of mild to moderate visible regrowth are 61% on the vertex (with an additional 5% achieving great visible regrowth) after 2 years and 37% on the frontal area after 1 year.” In the 2 studies done on hair loss at the crown of the head, 72% of men had further hair loss after 2 years. For clarity, vertex is the crown of the head and frontal area is the frontal or receding hairline.

The most common side effects of finasteride include:

  • decrease in sex drive
  • trouble getting or keeping an erection
  • a decrease in the amount of semen
Please click here to see the full Important Safety Information.