Chlorindione is primarily used as an anticoagulant in medical treatments. It works by inhibiting the synthesis of vitamin K-dependent clotting factors, which helps to prevent the formation of blood clots. This makes it valuable in managing and preventing conditions such as deep vein thrombosis, pulmonary embolism, and thromboembolic disorders. It is often prescribed for patients who have undergone certain types of surgery or those with atrial fibrillation to reduce the risk of stroke. Additionally, it may be used in the treatment of myocardial infarction to prevent further clot-related complications. Careful monitoring is required during its use to avoid excessive bleeding and ensure therapeutic effectiveness.