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Drug interactions

Betrixaban + Dalteparin

Severity: Major

Betrixaban and Dalteparin: 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

Both drugs are anticoagulants that inhibit factor Xa, so together they significantly raise the risk of bleeding. Concurrent use is usually only for transitions between anticoagulants.

What this interaction means in plain words

Betrixaban and Dalteparin 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 anticoagulation: direct factor Xa inhibition by betrixaban plus antithrombin-mediated factor Xa inhibition by dalteparin.

What to do

Avoid concurrent use except when switching, following labeled transition timing. 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 Dalteparin?

MediHelp rates the interaction as major. Betrixaban and Dalteparin 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. Both drugs are anticoagulants that inhibit factor Xa, so together they significantly raise the risk of bleeding. Concurrent use is usually only for transitions between anticoagulants.

How serious is the interaction between Betrixaban and Dalteparin?

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 except when switching, following labeled transition timing. Monitor for bleeding and hemoglobin.

What other medicines interact with Dalteparin?

MediHelp also lists interactions of Dalteparin with, for example, Defibrotide, Ketorolac, Mifepristone. The full list is on the Dalteparin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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