비아그라에 대한 최종 가이드
At one oral doses of one hundred mg and 200 mg, transient dose-similar impairment of color discrimination was detected utilizing the Farnsworth-Munsell 100-hue test, with peak outcomes near the time of peak plasma ranges. This acquiring is per the inhibition of PDE6, which is involved with phototransduction within the retina.Sildenafil enhances the