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Drug interactions

Indomethacin + Pegaspargase

Severity: Moderate

Indomethacin and Pegaspargase: 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

Pegaspargase can cause coagulation abnormalities including reduced fibrinogen and other clotting factors, as well as thrombosis. NSAIDs inhibit platelet function, so the combination may raise bleeding risk.

What this interaction means in plain words

Indomethacin and Pegaspargase 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.

Indomethacin belongs to Musculoskeletal; Pegaspargase belongs to Oncology.

Evidence level: Low

Why it happens

Additive hemostatic impairment: asparaginase-induced coagulation factor deficiency plus NSAID antiplatelet effect.

What to do

Avoid NSAIDs when possible during pegaspargase therapy, especially with thrombocytopenia or abnormal coagulation, and monitor coagulation parameters and platelet count.

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 Indomethacin with Pegaspargase?

MediHelp rates the interaction as moderate. Indomethacin and Pegaspargase 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. Pegaspargase can cause coagulation abnormalities including reduced fibrinogen and other clotting factors, as well as thrombosis. NSAIDs inhibit platelet function, so the combination may raise bleeding risk.

How serious is the interaction between Indomethacin and Pegaspargase?

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 NSAIDs when possible during pegaspargase therapy, especially with thrombocytopenia or abnormal coagulation, and monitor coagulation parameters and platelet count.

What other medicines interact with Indomethacin?

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

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

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