Drug interactions
Heparin + Parecoxib
Severity: Moderate
Heparin and Parecoxib: moderate 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
Parecoxib, a prodrug of the COX-2 inhibitor valdecoxib, does not impair platelet aggregation substantially but can still cause GI injury and renal effects. Combined with heparin, the bleeding risk may rise modestly, mainly via the GI tract.
What this interaction means in plain words
Heparin and Parecoxib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive bleeding risk from NSAID-related mucosal injury on top of heparin anticoagulation, with little direct platelet effect from COX-2 selectivity.
What to do
Use the lowest effective parecoxib dose for a short course and monitor for GI bleeding and hemoglobin changes. Consider acetaminophen as an alternative.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Heparin and Parecoxib, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
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 Parecoxib?
MediHelp rates the interaction as moderate. Heparin and Parecoxib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Parecoxib, a prodrug of the COX-2 inhibitor valdecoxib, does not impair platelet aggregation substantially but can still cause GI injury and renal effects. Combined with heparin, the bleeding risk may rise modestly, mainly via the GI tract.
How serious is the interaction between Heparin and Parecoxib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective parecoxib dose for a short course and monitor for GI bleeding and hemoglobin changes. Consider acetaminophen as an alternative.
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.
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.
