비아그라에 대한 사실 아무도 제안하지 않음
At single oral doses of a hundred mg and two hundred mg, transient dose-relevant impairment of shade discrimination was detected using the Farnsworth-Munsell 100-hue check, with peak effects near the time of peak plasma levels. This obtaining is in keeping with the inhibition of PDE6, and that is involved with phototransduction while in the retina.