Drug interactions
Aspirin / citric acid / sodium bicarbonate + Indomethacin
Severity: Major
Aspirin / citric acid / sodium bicarbonate and Indomethacin: 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
The effervescent aspirin product delivers a full analgesic aspirin dose, so combining it with indomethacin increases the risk of GI ulceration and bleeding. Indomethacin may also reduce the antiplatelet benefit of aspirin.
What this interaction means in plain words
Aspirin / citric acid / sodium bicarbonate and Indomethacin 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.
Why it happens
Additive COX inhibition and platelet impairment, plus competition at platelet COX-1.
What to do
Avoid concurrent use of two NSAIDs where possible. If needed, add a proton pump inhibitor and monitor for GI bleeding and renal function.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Aspirin / citric acid / sodium bicarbonate and Indomethacin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
References
Other interactions of Indomethacin
- Indomethacin + Ketorolac Contraindicated
- Indomethacin + Ketorolac intranasal Contraindicated
- Aceclofenac + Indomethacin Major
- Acemetacin + Indomethacin Major
- Acetylsalicylic acid + Indomethacin Major
- Alteplase + Indomethacin Major
Frequently asked questions
Can I take Aspirin / citric acid / sodium bicarbonate with Indomethacin?
MediHelp rates the interaction as major. Aspirin / citric acid / sodium bicarbonate and Indomethacin 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. The effervescent aspirin product delivers a full analgesic aspirin dose, so combining it with indomethacin increases the risk of GI ulceration and bleeding. Indomethacin may also reduce the antiplatelet benefit of aspirin.
How serious is the interaction between Aspirin / citric acid / sodium bicarbonate and Indomethacin?
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 of two NSAIDs where possible. If needed, add a proton pump inhibitor and monitor for GI bleeding and renal function.
What other medicines interact with Indomethacin?
MediHelp also lists interactions of Indomethacin with, for example, Ketorolac, Ketorolac intranasal, Aceclofenac. The full list is on the Indomethacin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
