비아그라에 대한 5가지 간단한 설명 설명

PDE3 is included in command of cardiac contractility. Sildenafil is just about ten-fold as powerful for PDE5 in comparison to PDE6, an enzyme located in the retina which can be linked to the phototransduction pathway on the retina. This reduce selectivity is thought to be The premise for abnormalities connected to colour eyesight [see Pharmacodynam