비아그라에 대한 확실한 가이드

At one oral doses of one hundred mg and 200 mg, transient dose-similar 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 getting is in keeping with the inhibition of PDE6, which can be linked to phototransduction inside the retina.T