Rescinnamine is an angiotensin-converting enzyme inhibitor used as an antihypertensive drug. It is an alkaloid obtained from <i>Rauwolfia serpentina</i> and other species of <i>Rauwolfia</i>. [Wikipedia] (en)
Rescinnamine Binds to and inhibits the angiotensin converting enzyme. Rescinnamine competes with angiotensin I for binding at the angiotensin-converting enzyme, blocking the conversion of angiotensin I to angiotensin II. Inhibition of ACE results in decreased plasma angiotensin II. As angiotensin II is a vasoconstrictor and a negative-feedback mediator for renin activity, lower concentrations result in a decrease in blood pressure and stimulation of baroreceptor reflex mechanisms, which leads to decreased vasopressor activity and to decreased aldosterone secretion. (en)