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Drug interactions

Argatroban + Tolmetin

Severity: Major

Argatroban and Tolmetin: 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

Tolmetin inhibits platelet function and can irritate the gastric mucosa, while argatroban is a direct thrombin inhibitor. Together they increase bleeding risk, particularly gastrointestinal bleeding.

What this interaction means in plain words

Argatroban and Tolmetin 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.

Argatroban belongs to Cardiovascular; Tolmetin belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic effect: NSAID antiplatelet action plus direct thrombin inhibition.

What to do

Avoid concurrent NSAID use when possible. If needed, monitor aPTT and watch for bleeding signs.

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?

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

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References

Frequently asked questions

Can I take Argatroban with Tolmetin?

MediHelp rates the interaction as major. Argatroban and Tolmetin 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. Tolmetin inhibits platelet function and can irritate the gastric mucosa, while argatroban is a direct thrombin inhibitor. Together they increase bleeding risk, particularly gastrointestinal bleeding.

How serious is the interaction between Argatroban and Tolmetin?

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 when possible. If needed, monitor aPTT and watch for bleeding signs.

What other medicines interact with Tolmetin?

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

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

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