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Drug Interaction Report

This report displays the potential drug interactions for the following 2 drugs:

  • mesalamine
  • naproxen

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Interactions between your drugs


naproxen mesalamine

Applies to: naproxen, mesalamine

MONITOR: Coadministration of 5-aminosalicylate with other nephrotoxic agents may increase the risk and severity of renal impairment due to additive effects on the kidney. The use of 5-aminosalicylate or its prodrugs has been associated with rare reports of renal impairment including minimal change nephropathy, acute and chronic interstitial nephritis, and renal failure. Animal studies have also shown the kidney to be the major target organ of 5-aminosalicylate toxicity. Renal lesions including granular and hyaline casts, tubular degeneration, tubular dilation, renal infarct, papillary edema, papillary necrosis, tubular necrosis, interstitial fibrosis, and interstitial nephritis have been observed with large doses.

MANAGEMENT: Caution is advised when 5-aminosalicylate preparations are prescribed to patients who have recently received or are receiving treatment with other potentially nephrotoxic agents (e.g., aminoglycosides; polypeptide, glycopeptide, and polymyxin antibiotics; amphotericin B; adefovir; cidofovir; foscarnet; cisplatin; deferasirox; gallium nitrate; lithium; certain immunosuppressants; intravenous bisphosphonates; intravenous pentamidine; high intravenous dosages of methotrexate; high dosages and/or chronic use of nonsteroidal anti-inflammatory agents). Renal function should be evaluated prior to and during 5-aminosalicylate therapy.


  1. "Product Information. Canasa (mesalamine (5-aminosalicylic acid))." Axcan Scandipharm Inc, Birmingham, AL.
  2. Schreiber S. Hamling J, Zehnter E, et al "Renal tubular dysfunction in patients with inflammatory bowel disease treated with aminosalicylate." Gut 40 (1997): 761-6
  3. Novis BH, Korzets Z, Chen P, Bernheim J "Nephrotic syndrome after treatment with 5-aminosalicylic acid." Br Med J (Clin Res Ed) 296 (1988): 1442
  4. "Product Information. Lialda (mesalamine (5-aminosalicylic acid))." Shire US Inc, Florence, KY.
View all 4 references

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Drug and food interactions

There are no known alcohol/food interactions with your selected drugs. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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