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Drug interactions

Ciprofloxacin + Pretomanid

Severity: Minor

Ciprofloxacin 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, which could reduce renal secretion of ciprofloxacin and raise its levels. The clinical significance is not well established.

What this interaction means in plain words

Ciprofloxacin 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.

Ciprofloxacin belongs to Anti Bacterial; Pretomanid belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Inhibition of renal OAT3 by pretomanid may reduce the tubular secretion of ciprofloxacin.

What to do

No routine dose change is needed. Monitor for ciprofloxacin adverse effects such as CNS or tendon symptoms, particularly in renal impairment.

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 Ciprofloxacin with Pretomanid?

MediHelp rates the interaction as minor. Ciprofloxacin 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, which could reduce renal secretion of ciprofloxacin and raise its levels. The clinical significance is not well established.

How serious is the interaction between Ciprofloxacin 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: No routine dose change is needed. Monitor for ciprofloxacin adverse effects such as CNS or tendon symptoms, particularly in renal impairment.

What other medicines interact with Ciprofloxacin?

MediHelp also lists interactions of Ciprofloxacin with, for example, Agomelatine, Fezolinetant, Thioridazine. The full list is on the Ciprofloxacin page.

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

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