Drug interactions
Dabigatran etexilate + Heparin
Severity: Major
Dabigatran etexilate and Heparin: 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
Dabigatran together with heparin increases bleeding risk because both impair clotting. Heparin at catheter-flushing doses is a recognized exception, but therapeutic dosing combined with dabigatran is hazardous.
What this interaction means in plain words
Dabigatran etexilate and Heparin 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.
Dabigatran etexilate belongs to Cardiovascular; Heparin belongs to Cardiovascular.
Why it happens
Additive anticoagulation: direct thrombin inhibition by dabigatran and antithrombin-dependent inhibition of thrombin and factor Xa by heparin.
What to do
Avoid concomitant therapeutic use; when switching from IV heparin, start dabigatran at the time heparin is stopped. Monitor for 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 Dabigatran etexilate
- Dabigatran etexilate + Defibrotide Contraindicated
- Dabigatran etexilate + Ketorolac Contraindicated
- Dabigatran etexilate + Mifepristone Contraindicated
- Abciximab + Dabigatran etexilate Major
- Alteplase + Dabigatran etexilate Major
- Amiodarone + Dabigatran etexilate Major
Other interactions of Heparin
- Defibrotide + Heparin Contraindicated
- Heparin + Ketorolac Contraindicated
- Heparin + Oritavancin Contraindicated
- Acemetacin + Heparin Major
- Acetylsalicylic acid + Heparin Major
- Alteplase + Heparin Major
Frequently asked questions
Can I take Dabigatran etexilate with Heparin?
MediHelp rates the interaction as major. Dabigatran etexilate and Heparin 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. Dabigatran together with heparin increases bleeding risk because both impair clotting. Heparin at catheter-flushing doses is a recognized exception, but therapeutic dosing combined with dabigatran is hazardous.
How serious is the interaction between Dabigatran etexilate and Heparin?
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 concomitant therapeutic use; when switching from IV heparin, start dabigatran at the time heparin is stopped. Monitor for bleeding.
What other medicines interact with Dabigatran etexilate?
MediHelp also lists interactions of Dabigatran etexilate with, for example, Defibrotide, Ketorolac, Mifepristone. The full list is on the Dabigatran etexilate page.
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