비아그라에 대한 사실 아무도 제안하지 않음

At one oral doses of one hundred mg and 200 mg, transient dose-linked impairment of colour discrimination was detected utilizing the Farnsworth-Munsell one hundred-hue check, with peak consequences near the time of peak plasma levels. This acquiring is per the inhibition of PDE6, which happens to be involved with phototransduction within the retina