비아그라 최고의 비밀
At single oral doses of 100 mg and two hundred mg, transient dose-linked impairment of colour discrimination was detected using the Farnsworth-Munsell a hundred-hue take a look at, with peak results near the time of peak plasma ranges. This finding is according to the inhibition of PDE6, which is linked to phototransduction while in the retina.an e