Propecia…suppresses libido in about 10 percent of men but is much more profound in younger guys.

Propecia…diminishes dihydrotestosterone levels and suppresses libido in about 10 percent of men but is much more profound in younger guys… Try stopping and using minoxidil instead for hair preservation.

—5 Common Medications That Can Cause Erectile Dysfunction: MedShadow, June 9, 2019