Perindopril

Angiotensin Converting Enzyme (ACE) Inhibitor on the WHO Model List of Essential Medicines. It blocks the conversion of angiotensin I to the potent vasoconstrictor angiotensin II, reducing peripheral arterial resistance, decreasing aldosterone secretion, and inhibiting the enzymatic degradation of bradykinin, producing potent vasodilation and cardioprotection. Indicated for essential hypertension, heart failure with reduced ejection fraction (HFrEF), post-myocardial infarction, and diabetic nephropathy.

Angiotensin Converting Enzyme (ACE) Inhibitor on the WHO Model List of Essential Medicines. It blocks the conversion of angiotensin I to the potent vasoconstrictor angiotensin II, reducing peripheral arterial resistance, decreasing aldosterone secretion, and inhibiting the enzymatic degradation of bradykinin, producing potent vasodilation and cardioprotection. Indicated for essential hypertension, heart failure with reduced ejection fraction (HFrEF), post-myocardial infarction, and diabetic nephropathy.

Amlodipine (or S-Amlodipine, the pure chirally active enantiomer with lower incidence of ankle edema) is a third-generation dihydropyridine calcium channel blocker on the WHO Model List of Essential Medicines. It inhibits transmembrane influx of extracellular calcium ions into vascular smooth muscle and cardiac muscle through L-type channels, resulting in potent peripheral arterial and coronary vasodilation with an exceptionally long half-life (30-50 hours). Indicated for essential hypertension, chronic stable angina pectoris, and vasospastic (Prinzmetal's) angina.