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Drug interactions

Cidofovir + Gentamicin

Severity: Contraindicated

Cidofovir and Gentamicin: contraindicated 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

Both drugs injure the proximal renal tubule, so combined use can cause severe acute kidney injury. Cidofovir labeling contraindicates concurrent use with other nephrotoxic agents including aminoglycosides.

What this interaction means in plain words

Cidofovir and Gentamicin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.

Cidofovir belongs to Anti Virals; Gentamicin belongs to Anti Bacterial.

Evidence level: High

Why it happens

Additive direct tubular nephrotoxicity.

What to do

Do not give together; stop the aminoglycoside at least 7 days before starting cidofovir or choose a non-nephrotoxic alternative.

What to ask your pharmacist

  • Is there an alternative to one of these two medicines for me?
  • If both are essential, who is monitoring me and how often?
  • Which symptoms mean I should stop and seek help straight away?

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 Cidofovir with Gentamicin?

MediHelp rates the interaction as contraindicated. Cidofovir and Gentamicin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Both drugs injure the proximal renal tubule, so combined use can cause severe acute kidney injury. Cidofovir labeling contraindicates concurrent use with other nephrotoxic agents including aminoglycosides.

How serious is the interaction between Cidofovir and Gentamicin?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not give together; stop the aminoglycoside at least 7 days before starting cidofovir or choose a non-nephrotoxic alternative.

What other medicines interact with Gentamicin?

MediHelp also lists interactions of Gentamicin with, for example, Adefovir, Amikacin, Amlodipine-hydrochlorothiazide-valsartan. The full list is on the Gentamicin page.

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

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