THE KJøP VIAGRA På NETT DIARIES

PDE3 is involved in command of cardiac contractility. Sildenafil is only about ten-fold as powerful for PDE5 when compared to PDE6, an enzyme located in the retina which is associated with the phototransduction pathway in the retina. This reduced selectivity is regarded as the basis for abnormalities associated with color eyesight [see Pharmacodyna