Anticoagulants are medications that prevent blood from clotting. They are commonly used to treat or prevent blood clots, which can be a serious medical condition that can lead to heart attacks, strokes, or other complications. Anticoagulants work by inhibiting the clotting process, preventing the formation of blood clots and reducing the risk of complications. These medications are commonly prescribed to patients with certain medical conditions, such as atrial fibrillation, deep vein thrombosis, and pulmonary embolism. Anticoagulants are available in different forms, including oral medications, injections, and intravenous infusions, and they are typically monitored regularly to ensure they are working effectively and safely.