비아그라에 대한 새로운 단계별 지도
At single oral doses of 100 mg and two hundred mg, transient dose-connected impairment of color discrimination was detected utilizing the Farnsworth-Munsell one hundred-hue test, with peak outcomes near the time of peak plasma concentrations. This locating is per the inhibition of PDE6, which is associated with phototransduction inside the retina.c