Anisindione
Anisindione is an oral anticoagulant medication that helps prevent the formation of harmful blood clots in the veins and arteries. It works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby prolonging the time it takes for blood to clot. This medication is used in patients at risk for thrombotic events such as venous thrombosis, pulmonary embolism, and stroke, particularly in those with atrial fibrillation or prosthetic heart valves.
Anisindione is an oral anticoagulant used to prevent blood clots in patients at risk for thrombosis or embolism.
Key facts at a glance
- RxNorm
- 17941
- Generic
- Anisindione
- Class
- unclassified
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used for prevention and treatment of venous thrombosis and pulmonary embolism, prevention of stroke in patients with atrial fibrillation, and prevention of thrombosis in those with mechanical heart valves.
Acts as a vitamin K antagonist by inhibiting vitamin K epoxide reductase, which reduces the hepatic synthesis of vitamin K-dependent coagulation factors (II, VII, IX, X), thereby prolonging clotting time.
Requires regular INR monitoring to ensure therapeutic levels. Multiple drug and food interactions exist, particularly with vitamin K-rich foods. Contraindicated in active bleeding, pregnancy, and severe liver or kidney disease. Warfarin has largely replaced this medication in clinical practice.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy