Comparison of the nephrotoxic potential of gentamicin, tobramycin and netilmicin in the rat

A. M. Ormsby, Richard Parker, C. E. Plamp

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Abstract

Three aminoglycoside antibiotics with similar antibacterial spectra and pharmacokinetics - gentamicin, tobramycin and netilmicin - were compared with respect to their nephrotoxic potential. Non-oliguric acute renal failure and proximal tubular necrosis were produced in the Fischer 344 rat by administering gentamicin, 40 mg/kg/day, in two divided doses for fourteen days. Doses of 40 mg/kg/day, and 120 mg/kg/day of tobramycin and netilmicin produced little renal failure. Aminoglycoside accumulated in the kidney cortex with all three drugs. The absolute amount of drug appears unrelated to nephrotoxicity when drugs are compared with each other. Tobramycin and netilmicin cause less impairment of concentrating ability than gentamicin. Proximal tubular necrosis was widespread with gentamicin and minimal with tobramycin and netilmicin. Thus, tobramycin and netilmicin are less nephrotoxic than gentamicin in the Fischer 344 rat.

Original languageEnglish (US)
Pages (from-to)335-343
Number of pages9
JournalCurrent Therapeutic Research - Clinical and Experimental
Volume25
Issue number2
StatePublished - 1979

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Netilmicin
Tobramycin
Gentamicins
Inbred F344 Rats
Aminoglycosides
Necrosis
Pharmaceutical Preparations
Kidney Cortex
Acute Kidney Injury
Renal Insufficiency
Pharmacokinetics
Anti-Bacterial Agents

ASJC Scopus subject areas

  • Medicine(all)

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Comparison of the nephrotoxic potential of gentamicin, tobramycin and netilmicin in the rat. / Ormsby, A. M.; Parker, Richard; Plamp, C. E.

In: Current Therapeutic Research - Clinical and Experimental, Vol. 25, No. 2, 1979, p. 335-343.

Research output: Contribution to journalArticle

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