알아야 할 고려 사항 비아그라 정보

sudden eyesight reduction in one or both of those eyes. Sudden vision reduction in one or both equally eyes generally is a sign of a significant eye difficulty called non-arteritic anterior ischemic optic neuropathy (NAION). End using VIAGRA and contact your healthcare supplier straight away When you've got any sudden eyesight lossCritical coronary

PDE3 is concerned in control of cardiac contractility. Sildenafil is simply about ten-fold as potent for PDE5 as compared to PDE6, an enzyme present in the retina which happens to be associated with the phototransduction pathway with the retina. This lower selectivity is regarded as The idea for abnormalities related to color vision [see Pharmacody