Drug interactions
Heparin + Piroxicam
Severity: Major
Heparin and Piroxicam: 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
Piroxicam reduces platelet aggregation and can cause gastric mucosal damage, adding to the anticoagulant effect of heparin. Combined use raises the likelihood of clinically significant bleeding.
What this interaction means in plain words
Heparin and Piroxicam 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.
Heparin belongs to Cardiovascular; Piroxicam belongs to Musculoskeletal.
Why it happens
Additive hemostatic impairment from NSAID platelet inhibition and mucosal injury plus heparin-mediated antithrombin activation.
What to do
Avoid NSAIDs in patients receiving therapeutic heparin where possible and use paracetamol instead. If combined, monitor for bleeding, hemoglobin and aPTT or anti-Xa as appropriate.
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 Piroxicam
- Ketorolac intranasal + Piroxicam Contraindicated
- Ketorolac + Piroxicam Contraindicated
- Aceclofenac + Piroxicam Major
- Acemetacin + Piroxicam Major
- Acetylsalicylic acid + Piroxicam Major
- Alteplase + Piroxicam 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 Heparin with Piroxicam?
MediHelp rates the interaction as major. Heparin and Piroxicam 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. Piroxicam reduces platelet aggregation and can cause gastric mucosal damage, adding to the anticoagulant effect of heparin. Combined use raises the likelihood of clinically significant bleeding.
How serious is the interaction between Heparin and Piroxicam?
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 NSAIDs in patients receiving therapeutic heparin where possible and use paracetamol instead. If combined, monitor for bleeding, hemoglobin and aPTT or anti-Xa as appropriate.
What other medicines interact with Piroxicam?
MediHelp also lists interactions of Piroxicam with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Piroxicam page.
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