Drug interactions
Naproxen + Sulfasalazine
Severity: Minor
Naproxen and Sulfasalazine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Naproxen is commonly used alongside sulfasalazine in inflammatory arthritis and there is no well-established clinically significant interaction. The two drugs have different mechanisms and the risks of bleeding or hyperkalemia are not meaningfully increased.
What this interaction means in plain words
Naproxen and Sulfasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
No established pharmacokinetic interaction; NSAID gastrointestinal and renal effects are independent of sulfasalazine.
What to do
No specific adjustment is needed. Monitor routine blood counts for sulfasalazine and renal function for NSAID use.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Naproxen
- Ketorolac intranasal + Naproxen Contraindicated
- Ketorolac + Naproxen Contraindicated
- Aceclofenac + Naproxen Major
- Acemetacin + Naproxen Major
- Acetylsalicylic acid + Naproxen Major
- Alteplase + Naproxen Major
Frequently asked questions
Can I take Naproxen with Sulfasalazine?
MediHelp rates the interaction as minor. Naproxen and Sulfasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Naproxen is commonly used alongside sulfasalazine in inflammatory arthritis and there is no well-established clinically significant interaction. The two drugs have different mechanisms and the risks of bleeding or hyperkalemia are not meaningfully increased.
How serious is the interaction between Naproxen and Sulfasalazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific adjustment is needed. Monitor routine blood counts for sulfasalazine and renal function for NSAID use.
What other medicines interact with Naproxen?
MediHelp also lists interactions of Naproxen with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Naproxen page.
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