Er*ctile function is regulated by both arterial and venous p*nile blood flow. The arteries of the p*nis are much smaller than the other arteries in the body, so they may be the first to be affected by endothelial dysfunction. ED, therefore, can occur before other signs of vascular disease become apparent. Vascular disease is the most common cause of ED, and both conditions often occur simultaneously. Buy Vilitra 40 in Strapkart to get a longer shelf life.