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Drug interactions

Cefoxitin + Kanamycin

Severity: Moderate

Cefoxitin and Kanamycin: 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

Giving a cephalosporin with an aminoglycoside may add to kidney injury, and aminoglycosides can also damage the inner ear. The risk is greatest in patients with existing renal impairment, older adults or those receiving prolonged courses.

What this interaction means in plain words

Cefoxitin and Kanamycin 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.

Evidence level: Low

Why it happens

Additive nephrotoxic potential, with aminoglycoside-related tubular injury and ototoxicity possibly aggravated by reduced renal clearance.

What to do

Monitor serum creatinine and urine output during combined therapy and check kanamycin levels where available. Adjust the aminoglycoside dose to renal function and report any hearing or balance symptoms promptly.

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?

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 Cefoxitin with Kanamycin?

MediHelp rates the interaction as moderate. Cefoxitin and Kanamycin 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. Giving a cephalosporin with an aminoglycoside may add to kidney injury, and aminoglycosides can also damage the inner ear. The risk is greatest in patients with existing renal impairment, older adults or those receiving prolonged courses.

How serious is the interaction between Cefoxitin and Kanamycin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum creatinine and urine output during combined therapy and check kanamycin levels where available. Adjust the aminoglycoside dose to renal function and report any hearing or balance symptoms promptly.

What other medicines interact with Cefoxitin?

MediHelp also lists interactions of Cefoxitin with, for example, Amikacin, Aztreonam, Bcg vaccine live. The full list is on the Cefoxitin page.

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