Amlopin 5 mg Tablet is a brand name for Amlodipine Besilate, a long-acting calcium channel blocker used to manage hypertension (high blood pressure) and certain types of angina (chest pain). Manufactured by ACME Laboratories Ltd. in Bangladesh, this medication works by inhibiting calcium ion influx into vascular smooth muscle and cardiac muscle, leading to vasodilation, reduced peripheral vascular resistance, and decreased myocardial oxygen demand.