Some sportsmen fear that Finasteride might prevent the muscular development, are they right ?
Finasteride is a medication that prevents the conversion of testosterone to DHT, where the 5-alpha reductase enzyme exists. The DHT level decreases by 70% and the testosterone level slightly increases by 8%. Experience does not show any change regarding secondary sexual characters: there is no feminization and the muscle mass does not decrease. The patients who are afraid of losing their muscular mass if they take Propecia can then be reassured.
For more details, please see our page dedicated to Finasteride.