• Erectile dysfunction , Viagra ,
• Tags: dosages, enzyme, erect state, PDE5 inhibitors, phosphodiesterase, Sildenafil, Viagra
• 01 May

Viagra (sildenafil) is a popular medication used to treat erectile dysfunction (ED) in men. The drug does not cure ED or increase sex drive. Instead, it helps you get an erection in a natural way. Manufactured by Pfizer, the medicine has become the first ED treatment approved by the U.S. Food and Drug Administration (FDA).