비아그라에 대한 모든 것
At one oral doses of one hundred mg and 200 mg, transient dose-linked impairment of colour discrimination was detected utilizing the Farnsworth-Munsell a hundred-hue exam, with peak results close to the time of peak plasma levels. This getting is per the inhibition of PDE6, that is linked to phototransduction inside the retina.Serious heart indicat