비아그라의 간단한 열쇠 공개
At single oral doses of a hundred mg and 200 mg, transient dose-related impairment of coloration discrimination was detected using the Farnsworth-Munsell a hundred-hue examination, with peak effects near the time of peak plasma levels. This acquiring is in step with the inhibition of PDE6, which is involved with phototransduction in the retina.