Xstan 20mg Tablet contains Telmisartan, an angiotensin II receptor antagonist used primarily for the management of hypertension. By selectively blocking the binding of angiotensin II to the AT1 receptor in vascular smooth muscle, Telmisartan promotes vasodilation, thereby reducing peripheral vascular resistance and lowering blood pressure. This mechanism helps prevent complications associated with hypertension, such as stroke, myocardial infarction, and renal impairment. Xstan is indicated for the treatment of essential hypertension and may be used alone or in combination with other antihypertensive agents. The 20mg dosage is typically prescribed as an initial dose, with adjustments made based on patient response and clinical judgment. Telmisartan is well tolerated, with a favorable side effect profile; common adverse effects may include dizziness, headache, and fatigue. It is contraindicated in patients with hypersensitivity to Telmisartan or any component of the formulation, and caution is advised in patients with renal or hepatic impairment. Regular monitoring of blood pressure and renal function is recommended during therapy. Xstan 20mg Tablet should be administered orally, with or without food, at the same time each day to maintain consistent plasma levels and optimize therapeutic outcomes.