Finasteride inhibits 5-alpha-reductase and reduces the conversion of testosterone to dihydrotestosterone. The 1 mg strength is medically used for male pattern hair loss.

The Xeno Labs presentation contains 1 mg finasteride per tablet and is supplied as 50 oral tablets. The active ingredient and formulation are identified on the GORoids listing.

Finasteride should be used according to approved indications and professional guidance. Appropriate warnings and pregnancy-related precautions should be retained in the product information.