Lintel 20 Tablet contains Telmisartan 20mg, an angiotensin II receptor antagonist used primarily for the management of hypertension. Telmisartan works by selectively blocking the binding of angiotensin II to the AT1 receptor found in various tissues, including vascular smooth muscle and the adrenal gland. This inhibition results in vasodilation, reduced secretion of aldosterone, and decreased sodium and water retention, ultimately lowering blood pressure. Lintel 20 is indicated for the treatment of essential hypertension to reduce the risk of cardiovascular events such as stroke and myocardial infarction. It may also be prescribed for patients with left ventricular hypertrophy or those at high cardiovascular risk. The tablet is typically administered once daily, with or without food, and dosage adjustments should be based on clinical response and patient tolerance. Common adverse effects include dizziness, headache, and fatigue, while serious adverse reactions are rare but may include hypotension and renal impairment. Lintel 20 should be used cautiously in patients with renal or hepatic dysfunction and is contraindicated during pregnancy. Regular monitoring of blood pressure, renal function, and electrolytes is recommended during therapy to ensure safety and efficacy.