Warfarin is a widely used anticoagulant medication that helps prevent blood clots. It works by inhibiting the synthesis of vitamin K-dependent clotting factors, thereby reducing the risk of thrombosis. Warfarin is commonly prescribed for patients at risk of blood clots, such as those with atrial fibrillation, deep vein thrombosis, or pulmonary embolism. However, warfarin therapy requires careful monitoring and dose adjustments to maintain the appropriate level of anticoagulation and to minimize the risk of bleeding complications. Research in the field of warfarin focuses on optimizing dosage regimens, identifying genetic factors that influence response to the medication, and developing alternatives to warfarin with more predictable effects and fewer drug interactions.