비아그라는 무엇을 의미합니까?
At single oral doses of 100 mg and two hundred mg, transient dose-relevant impairment of colour discrimination was detected utilizing the Farnsworth-Munsell one hundred-hue check, with peak consequences near the time of peak plasma levels. This getting is per the inhibition of PDE6, which can be linked to phototransduction within the retina.Disclai