Warfarin
Jantoven is a brand-name anticoagulant (blood thinner) that helps prevent the formation of harmful blood clots in the blood vessels. It is commonly prescribed for conditions such as atrial fibrillation, deep vein thrombosis (DVT), pulmonary embolism, and for patients with mechanical heart valves. The medication requires regular blood monitoring to ensure proper dosing and to minimize the risk of bleeding complications.
Jantoven is a prescription blood thinner used to prevent and treat dangerous blood clots in patients with heart rhythm problems, vein clots, or heart valve replacements.
Key facts at a glance
- RxNorm
- 405155
- Generic
- Jantoven
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- 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.
Jantoven is used to prevent and treat blood clots associated with atrial fibrillation (irregular heartbeat), deep vein thrombosis (DVT), pulmonary embolism, and mechanical heart valve replacements. It may also be used to reduce the risk of stroke in certain patients.
Jantoven contains warfarin, which works by inhibiting vitamin K-dependent clotting factors in the blood. By reducing the body's ability to form clots, it helps prevent existing clots from growing larger and reduces the risk of new clots forming.
Regular blood tests (INR monitoring) are essential to ensure safe and effective dosing. Many medications and foods high in vitamin K can interact with Jantoven. Bleeding is the primary risk, so patients should report any unusual bruising, bleeding, or signs of internal bleeding to their healthcare provider immediately. Never stop taking this medication without medical supervision.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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 July 26, 2026. · Read our editorial policy