Medbullets - Finasteride is a 5-alpha-reductase inhibitor that decreases the peripheral reduction of androgens, specifically suppressing the conversion of testosterone to dihydrotestosterone (DHT). It is commonly used to treat both male-pattern baldness (
![Propecia hair loss pill packets. The pills contain the drug finasteride, which acts to block the formation of the hormone dehydroxytestosterone (DHT Stock Photo - Alamy Propecia hair loss pill packets. The pills contain the drug finasteride, which acts to block the formation of the hormone dehydroxytestosterone (DHT Stock Photo - Alamy](https://c8.alamy.com/comp/2ADJDGX/propecia-hair-loss-pill-packets-the-pills-contain-the-drug-finasteride-which-acts-to-block-the-formation-of-the-hormone-dehydroxytestosterone-dht-2ADJDGX.jpg)
Propecia hair loss pill packets. The pills contain the drug finasteride, which acts to block the formation of the hormone dehydroxytestosterone (DHT Stock Photo - Alamy
![Effects of finasteride on serum testosterone and body mass index in men with benign prostatic hyperplasia - ScienceDirect Effects of finasteride on serum testosterone and body mass index in men with benign prostatic hyperplasia - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0090429503006617-gr1.gif)