How do ACE inhibitors work? Mechanisms of action and comparison with ARBs.

ACE inhibitors are a group of drugs that are often prescribed to treat high blood pressure and heart failure. They may also be prescribed following a heart attack. This video explains their mechanisms of action and compares ACE inhibiors with the related drugs, angiotensin receptor blockers (ARBs), renin antagonists and aldosterone antagonists.
01:31 The renin-angiotensin system
01:48 Actions of angiotensin II
08:26 Alternative ways to inhibit the renin-angiotensin-aldosterone pathway