비아그라에 대한 자세한 참고 사항

PDE3 is included accountable for cardiac contractility. Sildenafil is only about 10-fold as strong for PDE5 when compared with PDE6, an enzyme located in the retina which can be linked to the phototransduction pathway from the retina. This reduced selectivity is thought to be The premise for abnormalities connected with shade vision [see Pharmacody