Drug interactions
Caplacizumab + Heparin
Severity: Major
Caplacizumab 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
Caplacizumab inhibits von Willebrand factor-platelet binding and impairs primary hemostasis, which adds to heparin's anticoagulant effect. Combined use increases the risk of serious bleeding.
What this interaction means in plain words
Caplacizumab 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.
Caplacizumab belongs to Cardiovascular; Heparin belongs to Cardiovascular.
Why it happens
Additive effects on hemostasis: anti-vWF antiplatelet action plus antithrombin-mediated anticoagulation.
What to do
Monitor closely for bleeding and review the need for heparin; hold caplacizumab for serious bleeding per labeling.
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 Heparin
- Defibrotide + Heparin Contraindicated
- Heparin + Ketorolac Contraindicated
- Heparin + Oritavancin Contraindicated
- Acemetacin + Heparin Major
- Acetylsalicylic acid + Heparin Major
- Alteplase + Heparin Major
Other interactions of Caplacizumab
Frequently asked questions
Can I take Caplacizumab with Heparin?
MediHelp rates the interaction as major. Caplacizumab 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. Caplacizumab inhibits von Willebrand factor-platelet binding and impairs primary hemostasis, which adds to heparin's anticoagulant effect. Combined use increases the risk of serious bleeding.
How serious is the interaction between Caplacizumab 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: Monitor closely for bleeding and review the need for heparin; hold caplacizumab for serious bleeding per labeling.
What other medicines interact with Heparin?
MediHelp also lists interactions of Heparin with, for example, Defibrotide, Ketorolac, Oritavancin. The full list is on the Heparin page.
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