아무도 비아그라에 관한 사실 제안
At single oral doses of a hundred mg and 200 mg, transient dose-associated impairment of coloration discrimination was detected using the Farnsworth-Munsell a hundred-hue take a look at, with peak results close to the time of peak plasma amounts. This finding is according to the inhibition of PDE6, that's involved in phototransduction while in the