Also known as Finasteride, it’s the only other FDA-approved medicine to treat hair loss. The drug was originally created to help prevent prostate cancer, and works by blocking production of a male hormone in the scalp known as androgen dihydrotestosterone (DHT) that shuts down follicles to cause male pattern baldness.
“Propecia acts as a sort of fertilizer for the monixidal, helping it to regrow hair more effectively,” says Kernan. “You have to know it’s a lifetime commitment. Once you stop using Propecia, any hair loss that you would have had if you weren’t taking the medication will happen within three to eight months.”
You might want to note that some guys experience sexual side effects, like impotency or lack of desire.
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