What is the mechanism of action of Enalapril Maleate?

Enalapril Maleate functions as a competitive ACE inhibitor, which means it blocks the action of angiotensin-converting enzyme (ACE). This inhibition prevents the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. By inhibiting this process, Enalapril leads to vasodilation, reduced secretion of aldosterone, and decreased retention of sodium and water, ultimately lowering blood pressure. The drug's effects on the renin-angiotensin-aldosterone system (RAAS) significantly benefit patients with conditions like hypertension and heart failure, improving cardiovascular outcomes and reducing the workload on the heart. This mechanism distinguishes it from other options, which do not represent the actions of Enalapril. For instance, calcium channel blockers, beta-adrenergic receptor blockers, and diuretics target other pathways in the body and serve different therapeutic purposes.