Naproxen use is contraindicated or harmful in patients with Crohn's disease

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Evidence indicates that nonsteroidal anti-inflammatory drugs (NSAIDs) such as naproxen can trigger or worsen mucosal damage and inflammation, making them harmful or contraindicated in patients with Crohn's disease.

The analysis

The retrieved papers include studies and reviews discussing the general adverse gastrointestinal effects of NSAIDs (Paper 3) and specifically highlighting NSAID administration as a major risk factor that triggers and worsens inflammatory bowel disease such as Crohn's disease due to cyclooxygenase inhibition (Paper 7). There are no retrieved papers refuting this claim.

Evidence for · 2

Adverse Effects of Nonsteroidal Antiinflammatory Drugs: An Update of Gastrointestinal, Cardiovascular and Renal Complications

Recorded source metadata

Sam Harirforoosh, Waheed Asghar, Fakhreddin Jamali. Adverse Effects of Nonsteroidal Antiinflammatory Drugs: An Update of Gastrointestinal, Cardiovascular and Renal Complications. 2014. https://doi.org/10.18433/j3vw2f

Highlights that adverse effects of NSAIDs, including gastrointestinal complications, make them problematic in conditions like inflammatory bowel disease.

Source citation format

See more details

More for · 1

The prostaglandin receptor EP4 suppresses colitis, mucosal damage and CD4 cell activation in the gut

Recorded source metadata

Kenji Kabashima, Tomomi Saji, Tatsunori Murata, Miyako Nagamachi, Toshiyuki Matsuoka, Eri Segi‐Nishida, Kazuhito Tsuboi, Yukihiko Sugimoto, Takuya Kobayashi, Yoshiki Miyachi, Atsushi Ichikawa, Shuh Narumiya. The prostaglandin receptor EP4 suppresses colitis, mucosal damage and CD4 cell activation in the gut. 2002. https://doi.org/10.1172/jci0214459

Explicitly notes that the administration of nonsteroidal anti-inflammatory drugs is a major risk factor triggering and worsening inflammatory bowel disease like Crohn's disease.

Source citation format

The paper trail · every fact has a biography

first checked02 Aug 2026

judged → SUPPORTED · 9402 Aug 2026

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