Argatroban is an anticoagulant medication used to prevent and treat blood clots. It works by inhibiting a protein called thrombin, which plays a key role in the blood clotting process. This helps to reduce the risk of serious conditions such as deep vein thrombosis and pulmonary embolism. Typically administered through an intravenous (IV) line, Argatroban is often used in patients who cannot take other anticoagulants, such as heparin. It is important for healthcare providers to monitor patients closely while on this medication to ensure proper dosing and to minimize the risk of bleeding complications.