SIK - AN OVERVIEW

Viagra is really a model-identify version of your generic drug sildenafil. It’s a phosphodiesterase style 5 (PDE5) inhibitor. PDE5 can be an enzyme that regulates certain chemical compounds inside your blood, but thanks to its impact on the body, it will make it more durable so that you can get and keep an erection.are allergic to sildenafil, as