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Drug interactions

Antithrombin alfa + Diclofenac

Severity: Moderate

Antithrombin alfa and Diclofenac: 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

Antithrombin alfa potentiates heparin anticoagulation, and diclofenac inhibits platelet function and can injure the GI mucosa. Together bleeding risk may rise.

What this interaction means in plain words

Antithrombin alfa and Diclofenac 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: Low

Why it happens

Additive pharmacodynamic effect on hemostasis: anticoagulant plus NSAID antiplatelet and mucosal effects.

What to do

Avoid concurrent NSAID where possible. If used, monitor for bleeding and coagulation parameters.

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 Antithrombin alfa with Diclofenac?

MediHelp rates the interaction as moderate. Antithrombin alfa and Diclofenac 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. Antithrombin alfa potentiates heparin anticoagulation, and diclofenac inhibits platelet function and can injure the GI mucosa. Together bleeding risk may rise.

How serious is the interaction between Antithrombin alfa and Diclofenac?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent NSAID where possible. If used, monitor for bleeding and coagulation parameters.

What other medicines interact with Diclofenac?

MediHelp also lists interactions of Diclofenac with, for example, Ketorolac, Ketorolac intranasal, Aceclofenac. The full list is on the Diclofenac page.

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