Combining Naproxen and Warfarin is a major interaction and should generally be avoided without close medical supervision.
Taking naproxen with warfarin significantly increases your risk of serious bleeding, including stomach bleeding. This combination should generally be avoided.
Mechanism: Naproxen, an NSAID, inhibits cyclooxygenase enzymes, leading to reduced prostaglandin synthesis and impaired platelet aggregation. Warfarin, an anticoagulant, inhibits vitamin K-dependent clotting factors. The combined effect is a synergistic impairment of hemostasis, increasing the risk of bleeding.
Naproxen vs. Warfarin
Compare Naproxen and Warfarin: mechanism of action, indications, side effects, cost, and which may be right for you.
Drug A
Naproxen
Naproxen
NSAIDs (Non-Steroidal Anti-Inflammatory Drugs)
RxDrug B
Warfarin
Warfarin Sodium
Anticoagulants
RxQuick Comparison
| Category | Naproxen | Warfarin |
|---|---|---|
| Drug Class | NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) | Anticoagulants |
| Rx Status | Rx | Rx |
| Generic Available | No | No |
| Typical Cost | $4–$25/month | $10–$30/month |
Naproxen Overview
NAPROXEN (brand name: Naproxen) is a NSAIDs. 1 INDICATIONS & USAGE Naproxen delayed-release tablets are indicated for: the relief of the signs and symptoms of: rheumatoid arthritis osteoarthritis ankylosing spondylitis Polyarticular Juvenile Idiopathic Arthritis Naproxen delayed-release tablets are non-steroidal anti-inflammatory drugs…
Full Naproxen guide →Warfarin Overview
Warfarin is a "blood thinner" (anticoagulant) medication that helps prevent harmful blood clots from forming or growing larger in your body. It is prescribed to reduce the risk of serious problems like strokes, heart attacks, and clots in the legs or lungs, especially for people with certain heart conditions or after a heart attack.
Full Warfarin guide →How Each Drug Works
Naproxen
Naproxen has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of naproxen, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Naproxen is a potent inhibitor of prostaglandin synthesis in vitro. Naproxen concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in ani…
Approved Uses (Indications)
Naproxen
Naproxen delayed-release tablets are indicated for: the relief of the signs and symptoms of: rheumatoid arthritis osteoarthritis ankylosing spondylitis Polyarticular Juvenile Idiopathic Arthritis Naproxen delayed-release tablets are non-steroidal anti-inflammatory drugs indicated for: the relief of the signs and symptoms of: rheumatoid arthritis osteoarthritis ankylosing spondylitis polyarticular juvenile idiopathic arthritis
Warfarin
Warfarin sodium tablets are indicated for: Prophylaxis and treatment of venous thrombosis and its extension, pulmonary embolism (PE). Prophylaxis and treatment of thromboembolic complications associated with atrial fibrillation (AF) and/or cardiac valve replacement. Reduction in the risk of death, recurrent myocardial infarction (MI), and thromboembolic events such as stroke or systemic embolization after myocardial infarction. Limitations of Use Warfarin sodium tablets have no direct effect on an established thrombus, nor does it reverse ischemic tissue damage. Once a …
Side Effects
Naproxen
Warfarin
Cost Comparison
Naproxen
$4–$25/month
Naproxen is widely available as an affordable generic. Using discount cards like GoodRx can further reduce the cost, often bringing it to under $10 per month.
Warfarin
$10–$30/month
Warfarin is available as a generic and is generally very affordable. Using discount cards like GoodRx can often reduce the cost further, even without insurance.
Compare prices for Naproxen and Warfarin
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Medical Disclaimer
The information on RxGuide is intended for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician, pharmacist, or other qualified health provider with any questions you may have regarding a medical condition or medication. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.