Drug interactions
Betrixaban + Naproxen
Severity: Major
Betrixaban and Naproxen: 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
Betrixaban is a factor Xa inhibitor and naproxen adds platelet inhibition and gastrointestinal mucosal injury. This increases the risk of serious bleeding.
What this interaction means in plain words
Betrixaban and Naproxen 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.
Why it happens
Additive haemostatic impairment from anticoagulation plus NSAID platelet inhibition and mucosal damage.
What to do
Avoid concurrent NSAID use where possible and use paracetamol for analgesia. If needed, monitor for bleeding signs and consider gastroprotection.
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 Naproxen
- Ketorolac intranasal + Naproxen Contraindicated
- Ketorolac + Naproxen Contraindicated
- Aceclofenac + Naproxen Major
- Acemetacin + Naproxen Major
- Acetylsalicylic acid + Naproxen Major
- Alteplase + Naproxen Major
Frequently asked questions
Can I take Betrixaban with Naproxen?
MediHelp rates the interaction as major. Betrixaban and Naproxen 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. Betrixaban is a factor Xa inhibitor and naproxen adds platelet inhibition and gastrointestinal mucosal injury. This increases the risk of serious bleeding.
How serious is the interaction between Betrixaban and Naproxen?
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 where possible and use paracetamol for analgesia. If needed, monitor for bleeding signs and consider gastroprotection.
What other medicines interact with Naproxen?
MediHelp also lists interactions of Naproxen with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Naproxen page.
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