비아그라에 대한 최종 가이드

At solitary oral doses of 100 mg and two hundred mg, transient dose-linked impairment of shade discrimination was detected using the Farnsworth-Munsell a hundred-hue examination, with peak effects close to the time of peak plasma ranges. This acquiring is in step with the inhibition of PDE6, which is associated with phototransduction inside the ret