비아그라 더 이상 미스터리

At solitary oral doses of 100 mg and 200 mg, transient dose-relevant impairment of colour discrimination was detected using the Farnsworth-Munsell 100-hue exam, with peak consequences close to the time of peak plasma concentrations. This discovering is consistent with the inhibition of PDE6, which can be involved with phototransduction during the r