비아그라에 대한 자세한 참고 사항

PDE3 is included in charge of cardiac contractility. Sildenafil is simply about 10-fold as powerful for PDE5 when compared to PDE6, an enzyme present in the retina and that is involved in the phototransduction pathway of the retina. This lessen selectivity is thought to be The idea for abnormalities related to shade eyesight [see Pharmacodynamics].