Angiotensin converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARB) are medicines used to treat a heart attack, heart failure, or decreased functioning of the left side of your heart (left ventricular systolic dysfunction (LVSD).
Why this is important:
ACE inhibitors can help reduce the risk of death from a heart attack if taken within 24 hours of the first symptoms of a heart attack. Continued use may help prevent heart failure. ACE inhibitors work by stopping the production of a hormone that narrows blood vessels. This helps reduce the pressure in your heart and lower blood pressure. If you have a heart attack, you should be prescribed ACE inhibitors before you leave the hospital.
The chart above shows the percentage of heart attack patients that were given ACE or ARB inhibitor for LVSD.