Used as a long-acting anticoagulant to prevent blood clots in patients at risk of thromboembolic disorders. It works by inhibiting vitamin K-dependent clotting factors, reducing the formation of harmful clots that can lead to strokes or heart attacks. Commonly prescribed for long-term management of conditions like atrial fibrillation and deep vein thrombosis. Requires regular monitoring of blood clotting parameters to maintain therapeutic effectiveness and minimize bleeding risks.