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Drug interactions

Defibrotide + Oxaprozin

Severity: Moderate

Defibrotide and Oxaprozin: 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

Defibrotide has profibrinolytic and antithrombotic activity and may increase bleeding risk with drugs affecting hemostasis. NSAIDs impair platelet function and can add to this risk.

What this interaction means in plain words

Defibrotide and Oxaprozin 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.

Defibrotide belongs to Cardiovascular; Oxaprozin belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Additive pharmacodynamic effects on hemostasis from defibrotide's fibrinolytic activity and oxaprozin's platelet inhibition.

What to do

Monitor for bleeding and platelet and coagulation parameters, and avoid NSAIDs where an alternative analgesic is possible. Follow defibrotide labeling regarding concomitant antithrombotic agents.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Defibrotide with Oxaprozin?

MediHelp rates the interaction as moderate. Defibrotide and Oxaprozin 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. Defibrotide has profibrinolytic and antithrombotic activity and may increase bleeding risk with drugs affecting hemostasis. NSAIDs impair platelet function and can add to this risk.

How serious is the interaction between Defibrotide and Oxaprozin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for bleeding and platelet and coagulation parameters, and avoid NSAIDs where an alternative analgesic is possible. Follow defibrotide labeling regarding concomitant antithrombotic agents.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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