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Drug interactions

Betrixaban + Tolmetin

Severity: Major

Betrixaban and Tolmetin: 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

Betrixaban is an anticoagulant, and NSAIDs add antiplatelet effects and gastrointestinal mucosal injury, increasing the risk of serious bleeding.

What this interaction means in plain words

Betrixaban and Tolmetin 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: Moderate

Why it happens

Additive hemostatic impairment: factor Xa inhibition plus NSAID platelet inhibition and GI mucosal damage.

What to do

Avoid concurrent NSAID use if possible; if unavoidable, use the lowest dose briefly with gastroprotection. Monitor for bleeding and hemoglobin.

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 Betrixaban with Tolmetin?

MediHelp rates the interaction as major. Betrixaban and Tolmetin 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. Betrixaban is an anticoagulant, and NSAIDs add antiplatelet effects and gastrointestinal mucosal injury, increasing the risk of serious bleeding.

How serious is the interaction between Betrixaban and Tolmetin?

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 NSAID use if possible; if unavoidable, use the lowest dose briefly with gastroprotection. Monitor for bleeding and hemoglobin.

What other medicines interact with Tolmetin?

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

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