Drug interactions
Fondaparinux + Oxaprozin
Severity: Major
Fondaparinux and Oxaprozin: 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
Fondaparinux anticoagulation together with NSAID antiplatelet effects and mucosal injury increases the chance of significant bleeding.
What this interaction means in plain words
Fondaparinux and Oxaprozin 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.
Fondaparinux belongs to Cardiovascular; Oxaprozin belongs to Musculoskeletal.
Why it happens
Additive pharmacodynamic effect: indirect factor Xa inhibition plus NSAID platelet inhibition and gastric mucosal damage.
What to do
Avoid concurrent NSAID use if possible, choosing acetaminophen for analgesia. If both are needed, monitor for bleeding signs 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?
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References
Other interactions of Oxaprozin
- Ketorolac intranasal + Oxaprozin Contraindicated
- Ketorolac + Oxaprozin Contraindicated
- Aceclofenac + Oxaprozin Major
- Acemetacin + Oxaprozin Major
- Acetylsalicylic acid + Oxaprozin Major
- Alteplase + Oxaprozin Major
Other interactions of Fondaparinux
- Defibrotide + Fondaparinux Contraindicated
- Fondaparinux + Ketorolac Contraindicated
- Abciximab + Fondaparinux Major
- Aceclofenac + Fondaparinux Major
- Acetylsalicylic acid + Fondaparinux Major
- Alteplase + Fondaparinux Major
Frequently asked questions
Can I take Fondaparinux with Oxaprozin?
MediHelp rates the interaction as major. Fondaparinux and Oxaprozin 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. Fondaparinux anticoagulation together with NSAID antiplatelet effects and mucosal injury increases the chance of significant bleeding.
How serious is the interaction between Fondaparinux and Oxaprozin?
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 NSAID use if possible, choosing acetaminophen for analgesia. If both are needed, monitor for bleeding signs and hemoglobin.
What other medicines interact with Oxaprozin?
MediHelp also lists interactions of Oxaprozin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Oxaprozin page.
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