Used as an anticoagulant in pharmaceutical formulations, particularly in the prevention of blood clot formation. It functions by inhibiting vitamin K epoxide reductase, thereby interfering with the synthesis of clotting factors in the liver. Commonly prescribed for conditions such as deep vein thrombosis, pulmonary embolism, and atrial fibrillation. Also utilized in patients with mechanical heart valves to reduce the risk of stroke. Its long half-life allows for once-daily dosing, making it suitable for chronic use under regular monitoring.