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Drug interactions

Indomethacin + Pretomanid

Severity: Minor

Indomethacin and Pretomanid: minor 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

Pretomanid inhibits OAT3 in vitro, and indomethacin is an OAT3 substrate, so its renal clearance could be reduced. The clinical significance is not established.

What this interaction means in plain words

Indomethacin and Pretomanid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Indomethacin belongs to Musculoskeletal; Pretomanid belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Inhibition of OAT3-mediated renal tubular secretion of indomethacin by pretomanid, shown in vitro.

What to do

Monitor for increased indomethacin adverse effects such as GI upset or renal changes and reduce the dose if they occur.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Pretomanid?

MediHelp rates the interaction as minor. Indomethacin and Pretomanid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Pretomanid inhibits OAT3 in vitro, and indomethacin is an OAT3 substrate, so its renal clearance could be reduced. The clinical significance is not established.

How serious is the interaction between Indomethacin and Pretomanid?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for increased indomethacin adverse effects such as GI upset or renal changes and reduce the dose if they occur.

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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