Warfarin is used for which purpose?

Warfarin is used for which purpose?

• A. An oral anticoagulant prescribed to reduce the risk of thromboembolic events after ischemic stroke
• B. Pain relief
• C. Cholesterol reduction
• D. Antihistamine

Answer: (A)

Warfarin’s role is to prevent clot formation, not to relieve pain, lower cholesterol, or treat allergies. It is an oral anticoagulant that inhibits vitamin K–dependent synthesis of clotting factors in the liver, which lowers the risk of thromboembolic events. After an ischemic stroke, preventing another clot from forming is crucial for reducing recurrent stroke or systemic embolism, especially in patients with risk factors like atrial fibrillation or mechanical heart valves. This makes warfarin the appropriate choice. It’s not used for analgesia, cholesterol reduction, or as an antihistamine.

Warfarin’s role is to prevent clot formation, not to relieve pain, lower cholesterol, or treat allergies. It is an oral anticoagulant that inhibits vitamin K–dependent synthesis of clotting factors in the liver, which lowers the risk of thromboembolic events. After an ischemic stroke, preventing another clot from forming is crucial for reducing recurrent stroke or systemic embolism, especially in patients with risk factors like atrial fibrillation or mechanical heart valves. This makes warfarin the appropriate choice. It’s not used for analgesia, cholesterol reduction, or as an antihistamine.