비아그라에 대한 새로운 단계별 지도
At solitary oral doses of a hundred mg and two hundred mg, transient dose-associated impairment of color discrimination was detected using the Farnsworth-Munsell a hundred-hue exam, with peak outcomes near the time of peak plasma levels. This acquiring is per the inhibition of PDE6, which can be involved in phototransduction during the retina.“Th