아무도 논의하지 않는 비아그라의 영리한 비법
At solitary oral doses of 100 mg and two hundred mg, transient dose-linked impairment of color discrimination was detected utilizing the Farnsworth-Munsell one hundred-hue check, with peak effects close to the time of peak plasma amounts. This finding is in keeping with the inhibition of PDE6, that is involved in phototransduction from the retina.T