Used primarily in the treatment of hypertension, this compound acts as a selective alpha-1 adrenergic receptor antagonist. It helps relax vascular smooth muscle, leading to vasodilation and reduced peripheral vascular resistance, thereby lowering blood pressure. Due to its selectivity, it offers effective blood pressure control with a lower incidence of reflex tachycardia. It is administered orally and is particularly useful in patients who may not tolerate other antihypertensive agents.