비아그라에 대한 5가지 필수 요소

At single oral doses of 100 mg and two hundred mg, transient dose-linked impairment of coloration discrimination was detected using the Farnsworth-Munsell 100-hue examination, with peak consequences near the time of peak plasma ranges. This locating is in keeping with the inhibition of PDE6, which can be linked to phototransduction in the retina.Yo