Sildenafil: The Inside Track on a Game-Changer for Health & Performance What is Sildenafil? The Evolving Powerhouse Behind ED and Beyond Does the word "Sildenafil" conjure up images of little blue tablets and whispered pharmacy conversations? You're not alone—but it's time to level up your understanding. Sildenafil, best known as the active ingredient in Viagra®, is more than a pop cul...