비아그라에 대해 알려지지 않은 사실
At solitary oral doses of a hundred mg and two hundred mg, transient dose-associated impairment of coloration discrimination was detected using the Farnsworth-Munsell one hundred-hue exam, with peak consequences close to the time of peak plasma ranges. This finding is in step with the inhibition of PDE6, that is linked to phototransduction from the