Acenocoumarol is an anticoagulant medication used to prevent blood clots. It works by inhibiting the action of vitamin K, which is essential for the synthesis of certain clotting factors in the liver. This helps reduce the risk of conditions such as deep vein thrombosis and pulmonary embolism. Patients taking Acenocoumarol require regular monitoring of their blood coagulation levels, typically through a test called INR (International Normalized Ratio). Adjustments to the dosage may be necessary based on these results to ensure effective anticoagulation while minimizing the risk of bleeding complications.