Merck & Co manufactures Proscar tablets.
Patient Information for Proscar is available in PDF format.

A lower dosage of Finasteride may reduce male baldness.

It was discovered that the same hormone responsible for some prostate gland enlargement plays an important role in signaling certain genetically predisposed hair follicle cells to miniaturize, eventually leading to hair loss.

Finasteride (PROPECIA): U.S. FDA (United States Food and Drug Administration) approved for the treatment of male pattern hair loss on the vertex (top of head) and the anterior mid-scalp area. When prescribed as an anti-baldness medication, Finasteride may be taken orally, or applied topically onto the scalp. The dosage necessary to produce significant hair restoration benefits is much less than the dosage typically prescribed for treating enlarged prostate glands. It is sold as a prescription medication as a 1-milligram tablet under the brand name PROPECIA.

Merck & Co manufactures PROPECIA tablets.