Febuxostat and Naproxen Interaction
Drug interaction information between Febuxostat and Naproxen.
Febuxostat and Naproxen have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Febuxostat and Naproxen. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
Research shows that these two medications do not significantly change how the other works in the body.
What To Do
You can take these together as prescribed without needing to change your routine.
FDA Label Information
7.3 In Vivo Drug Interaction Studies Based on drug interaction studies in healthy patients, febuxostat does not have clinically significant interactions with colchicine, naproxen, indomethacin, hydrochlorothiazide, warfarin or desipramine [see Clinical Pharmacology (12.3) ].
Febuxostat Also Interacts With
- Rosuvastatin major
- Rosuvastatin/Ezetimibe major
- Theophylline moderate
- Hydrochlorothiazide minor
- Warfarin minor
Naproxen Also Interacts With
- Methotrexate moderate
- Magnesium Oxide moderate
- Diflunisal moderate
- Sucralfate moderate
- Cholestyramine moderate
Frequently Asked Questions
Can I take Febuxostat and Naproxen together?
This is a minor interaction. You can take these together as prescribed without needing to change your routine.
How serious is the interaction between Febuxostat and Naproxen?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Febuxostat and Naproxen interact?
Research shows that these two medications do not significantly change how the other works in the body.
Understanding the Febuxostat and Naproxen Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Febuxostat belongs to the Xanthine Oxidase Inhibitor class and Naproxen belongs to the Nonsteroidal Anti-Inflammatory Drug (NSAID) class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Research shows that these two medications do not significantly change how the other works in the body. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Febuxostat has 9 total documented interactions on file in this dataset, and Naproxen has 23. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: You can take these together as prescribed without needing to change your routine. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Febuxostat or Naproxen based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.