Capoten suppresses activity of angiotensin-converting-enzyme therefore angiotensin-I turns into angiotensin II - substance which has strong vasoconstrictive action. Capoten reduces secretion of Aldosteronum in suprarenal cortex, at the same time the delay of sodium and water in an organism decreases. Capoten slows down process of bradykinin destruction and promotes increase of E2 prostaglandin, and also nitrogen oxide that causes vasodilating action. Thanks to these effects it is decreased the increased arterial pressure, the general peripheric resistance decreases, pressure in the right auricle, in a small circle of blood circulation decreases and cordial emission increases.