비아그라를 위한 5가지 간단한 기술
At solitary oral doses of a hundred mg and two hundred mg, transient dose-similar impairment of color discrimination was detected utilizing the Farnsworth-Munsell a hundred-hue take a look at, with peak consequences near the time of peak plasma ranges. This getting is in keeping with the inhibition of PDE6, which can be linked to phototransduction