Finasteride works by blocking the conversion of testosterone into DHT (dihydrotestosterone), which decreases the amount of DHT in the body. Since DHT is important for male pattern baldness, using finasteride to decrease DHT levels can help to stop hair loss and regrow hair.
This medication works for male pattern baldness with hair loss on the top and front of the head. It has not been shown to be effective for a receding hairline near the temples. It is also not licensed to treat hair loss in women or children.
Finasteride is not a hair loss cure. Hair loss will return within a year of stopping treatment.
There have been several studies looking at how well finasteride treats male pattern baldness.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed January 16, 2013.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind.
Site users seeking medical advice about their specific situation should consult with their own physician. Click