Interaction databaseSupplement × PrescriptionReviewed May 2026

Celecoxib and Ginkgo Biloba, a caution.

Ginkgo biloba may add bleeding risk to celecoxib, particularly in people who also take aspirin or have ulcer history. Celecoxib is more GI-sparing than many NSAIDs, but it does not eliminate GI bleeding risk. Ginkgo has case reports of spontaneous bleeding and uncertain but plausible platelet effects.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

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At a glance

Substances
Celecoxib and Ginkgo Biloba
Pair type
Caution
Evidence (highest tier)
Emerging
Source citations
2 sources
Stack Score effect
−5 to your Stack Score (per scored caution row).
Scope
Supplement × Prescription
Last verified
May 30, 2026

Caution · Emerging evidence

Caution

What is happening. Ginkgo biloba may add bleeding risk to celecoxib, particularly in people who also take aspirin or have ulcer history. Celecoxib is more GI-sparing than many NSAIDs, but it does not eliminate GI bleeding risk. Ginkgo has case reports of spontaneous bleeding and uncertain but plausible platelet effects.

Mechanism. Ginkgo may reduce platelet activation through platelet-activating factor pathways. Celecoxib inhibits COX-2 and can still contribute to GI injury, especially when combined with aspirin or other risk factors.

Recommendation. Avoid ginkgo if you take celecoxib with aspirin or other bleeding-risk medicines. If used together, watch for unusual bruising, nosebleeds, black stools, or new severe headache.

Sources (2)
  1. Kellermann AJ, Kloft C. Is there a risk of bleeding associated with standardized Ginkgo biloba extract therapy? A systematic review and meta-analysis. Pharmacotherapy. 2011;31(5):490-502. PMID 21923430
  2. Sostres C, Gargallo CJ, Arroyo MT, Lanas A. Adverse effects of non-steroidal anti-inflammatory drugs (NSAIDs, aspirin and coxibs) on upper gastrointestinal tract. Best Pract Res Clin Gastroenterol. 2010;24(2):121-132. PMID 20227026

Stack Score

How this pair moves the number.

Effect on the composite score

If both Celecoxib and Ginkgo Biloba are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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