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Drug interactions

Heparin + Meclofenamate

Severity: Moderate

Heparin and Meclofenamate: 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

Meclofenamate is an NSAID that reduces platelet aggregation and can cause gastrointestinal ulceration. Together with heparin it increases the likelihood of bleeding, especially from the GI tract.

What this interaction means in plain words

Heparin and Meclofenamate 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.

Evidence level: Moderate

Why it happens

Additive effect of NSAID-induced platelet COX inhibition and GI mucosal damage with heparin anticoagulation.

What to do

Prefer acetaminophen or another non-NSAID analgesic during heparin therapy. If an NSAID is needed, use the lowest dose for the shortest time and monitor for bleeding signs and hemoglobin.

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 Heparin with Meclofenamate?

MediHelp rates the interaction as moderate. Heparin and Meclofenamate 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. Meclofenamate is an NSAID that reduces platelet aggregation and can cause gastrointestinal ulceration. Together with heparin it increases the likelihood of bleeding, especially from the GI tract.

How serious is the interaction between Heparin and Meclofenamate?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer acetaminophen or another non-NSAID analgesic during heparin therapy. If an NSAID is needed, use the lowest dose for the shortest time and monitor for bleeding signs and hemoglobin.

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.

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