Drug interactions
Choline magnesium trisalicylate + Warfarin
Severity: Major
Choline magnesium trisalicylate and Warfarin: major interaction.
Last updated Sources: Health Canada product monograph
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
Salicylates impair platelet function and can cause gastric injury, increasing bleeding risk with warfarin. High doses may also modestly raise INR.
What this interaction means in plain words
Choline magnesium trisalicylate and Warfarin 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
Antiplatelet effect and gastrointestinal mucosal injury add to warfarin anticoagulation; high-dose salicylates may displace warfarin and have hypoprothrombinemic effects.
What to do
Avoid unless a clear indication exists; prefer paracetamol for analgesia. If combined, monitor INR and bleeding and consider gastroprotection.
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?
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References
Other interactions of Warfarin
- Defibrotide + Warfarin Contraindicated
- Ketorolac + Warfarin Contraindicated
- Abciximab + Warfarin Major
- Acetylsalicylic acid + Warfarin Major
- Adagrasib + Warfarin Major
- Amiodarone + Warfarin Major
Frequently asked questions
Can I take Choline magnesium trisalicylate with Warfarin?
MediHelp rates the interaction as major. Choline magnesium trisalicylate and Warfarin 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. Salicylates impair platelet function and can cause gastric injury, increasing bleeding risk with warfarin. High doses may also modestly raise INR.
How serious is the interaction between Choline magnesium trisalicylate and Warfarin?
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 unless a clear indication exists; prefer paracetamol for analgesia. If combined, monitor INR and bleeding and consider gastroprotection.
What other medicines interact with Warfarin?
MediHelp also lists interactions of Warfarin with, for example, Defibrotide, Ketorolac, Abciximab. The full list is on the Warfarin page.
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