Drug interactions
Contrast media + Gentamicin
Severity: Major
Contrast media and Gentamicin: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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
Iodinated contrast can cause acute kidney injury, and gentamicin is nephrotoxic. Giving them together raises the risk of renal damage and subsequent accumulation of gentamicin, increasing ototoxicity risk.
What this interaction means in plain words
Contrast media and Gentamicin 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.
Why it happens
Additive nephrotoxicity, with reduced renal function leading to higher gentamicin exposure.
What to do
Ensure adequate hydration and avoid or defer contrast where possible during gentamicin therapy. Monitor serum creatinine and gentamicin levels, and adjust the dose.
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?
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References
Other interactions of Gentamicin
- Cidofovir + Gentamicin Contraindicated
- Adefovir + Gentamicin Major
- Amikacin + Gentamicin Major
- Amlodipine-hydrochlorothiazide-valsartan + Gentamicin Major
- Amphotericin b deoxycholate + Gentamicin Major
- Amphotericin b + Gentamicin Major
Frequently asked questions
Can I take Contrast media with Gentamicin?
MediHelp rates the interaction as major. Contrast media and Gentamicin 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. Iodinated contrast can cause acute kidney injury, and gentamicin is nephrotoxic. Giving them together raises the risk of renal damage and subsequent accumulation of gentamicin, increasing ototoxicity risk.
How serious is the interaction between Contrast media and Gentamicin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure adequate hydration and avoid or defer contrast where possible during gentamicin therapy. Monitor serum creatinine and gentamicin levels, and adjust the dose.
What other medicines interact with Gentamicin?
MediHelp also lists interactions of Gentamicin with, for example, Cidofovir, Adefovir, Amikacin. The full list is on the Gentamicin page.
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