Used primarily in the management of hypertension, this compound helps lower blood pressure by inhibiting the angiotensin-converting enzyme (ACE), which reduces the formation of angiotensin II—a potent vasoconstrictor. This action leads to relaxation of blood vessels, decreased peripheral resistance, and improved cardiovascular outcomes. It is also prescribed for patients with heart failure or post-myocardial infarction to enhance survival and reduce cardiac workload. Its sulfhydryl group may offer additional antioxidant properties, potentially providing vascular protection beyond standard ACE inhibition.