Drug interactions
Gentamicin + Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol
Severity: Moderate
Gentamicin and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol: 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
Bowel preparation causes fluid and electrolyte shifts and volume depletion, which can predispose to kidney injury. Gentamicin is nephrotoxic and can cause renal electrolyte wasting, so concurrent use may worsen renal function and electrolyte disturbances.
What this interaction means in plain words
Gentamicin and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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.
Why it happens
Volume depletion and electrolyte shifts from bowel preparation add to aminoglycoside nephrotoxicity and renal electrolyte wasting.
What to do
Ensure adequate hydration and check serum creatinine, potassium and magnesium when both are given. Adjust gentamicin dosing if renal function declines.
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?
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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 Gentamicin with Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates the interaction as moderate. Gentamicin and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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. Bowel preparation causes fluid and electrolyte shifts and volume depletion, which can predispose to kidney injury. Gentamicin is nephrotoxic and can cause renal electrolyte wasting, so concurrent use may worsen renal function and electrolyte disturbances.
How serious is the interaction between Gentamicin and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure adequate hydration and check serum creatinine, potassium and magnesium when both are given. Adjust gentamicin dosing if renal function declines.
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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