Eritel CH 80 Tablet contains a combination of Telmisartan 80 mg and Chlorthalidone 12.5 mg, formulated for the management of hypertension. Telmisartan is an angiotensin II receptor blocker (ARB) that selectively inhibits the binding of angiotensin II to the AT1 receptor, thereby reducing vasoconstriction and aldosterone secretion, resulting in lowered blood pressure. Chlorthalidone is a thiazide-like diuretic that promotes the excretion of sodium and water by inhibiting sodium reabsorption in the distal convoluted tubules of the kidneys, contributing to a reduction in blood volume and peripheral resistance. The synergistic effect of these agents provides effective and sustained blood pressure control, reducing the risk of cardiovascular events such as stroke, myocardial infarction, and heart failure. Eritel CH 80 is indicated for patients who require combination therapy for hypertension, especially when monotherapy is insufficient. It should be used with caution in patients with renal or hepatic impairment, electrolyte imbalances, or hypersensitivity to sulfonamides. Regular monitoring of blood pressure, renal function, and electrolytes is recommended during treatment. This medication should be taken as prescribed by a healthcare professional, and patients should be advised to maintain lifestyle modifications alongside pharmacotherapy for optimal outcomes.