Drug interactions
Magnesium salicylate + Warfarin
Severity: Major
Magnesium salicylate and Warfarin: major interaction.
Last updated
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
Magnesium salicylate can impair platelet function and irritate the gastric mucosa, increasing bleeding risk with warfarin. High doses may also raise INR.
What this interaction means in plain words
Magnesium salicylate 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
Salicylate antiplatelet and mucosal effects add to warfarin anticoagulation, with possible protein-binding displacement at high doses.
What to do
Avoid regular use and choose paracetamol where analgesia is needed. If combined, monitor INR and signs of bleeding.
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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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 Magnesium salicylate with Warfarin?
MediHelp rates the interaction as major. Magnesium salicylate 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. Magnesium salicylate can impair platelet function and irritate the gastric mucosa, increasing bleeding risk with warfarin. High doses may also raise INR.
How serious is the interaction between Magnesium salicylate 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 regular use and choose paracetamol where analgesia is needed. If combined, monitor INR and signs of bleeding.
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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