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Drug interactions

Epoprostenol + Naproxen

Severity: Moderate

Epoprostenol and Naproxen: 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

Epoprostenol inhibits platelet aggregation and naproxen impairs platelet function, so concurrent use increases bleeding risk. This is most relevant in patients with other bleeding risk factors.

What this interaction means in plain words

Epoprostenol and Naproxen 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.

Epoprostenol belongs to Genitourinary; Naproxen belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive antiplatelet effects: prostacyclin-mediated inhibition of aggregation plus COX inhibition.

What to do

Monitor for signs of bleeding and avoid unnecessary NSAID use in patients on epoprostenol. Check hemoglobin if bleeding is suspected.

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 Epoprostenol with Naproxen?

MediHelp rates the interaction as moderate. Epoprostenol and Naproxen 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. Epoprostenol inhibits platelet aggregation and naproxen impairs platelet function, so concurrent use increases bleeding risk. This is most relevant in patients with other bleeding risk factors.

How serious is the interaction between Epoprostenol and Naproxen?

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 signs of bleeding and avoid unnecessary NSAID use in patients on epoprostenol. Check hemoglobin if bleeding is suspected.

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.

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

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