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Drug interactions

Aspirin / citric acid / sodium bicarbonate + Sulindac

Severity: Major

Aspirin / citric acid / sodium bicarbonate and Sulindac: major interaction.

Last updated Sources: US FDA label

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

This effervescent aspirin product delivers a full analgesic dose of aspirin, which, with sulindac, raises the risk of gastrointestinal ulceration and bleeding. The NSAID may also interfere with aspirin's antiplatelet effect.

What this interaction means in plain words

Aspirin / citric acid / sodium bicarbonate and Sulindac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Evidence level: High

Why it happens

Additive cyclooxygenase inhibition and platelet dysfunction with gastrointestinal mucosal injury.

What to do

Avoid concurrent use and select a single NSAID or a non-NSAID analgesic. If combined, give gastroprotection and monitor for GI bleeding and anemia.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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References

Frequently asked questions

Can I take Aspirin / citric acid / sodium bicarbonate with Sulindac?

MediHelp rates the interaction as major. Aspirin / citric acid / sodium bicarbonate and Sulindac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. This effervescent aspirin product delivers a full analgesic dose of aspirin, which, with sulindac, raises the risk of gastrointestinal ulceration and bleeding. The NSAID may also interfere with aspirin's antiplatelet effect.

How serious is the interaction between Aspirin / citric acid / sodium bicarbonate and Sulindac?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use and select a single NSAID or a non-NSAID analgesic. If combined, give gastroprotection and monitor for GI bleeding and anemia.

What other medicines interact with Sulindac?

MediHelp also lists interactions of Sulindac with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Sulindac page.

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