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. 1979 Jan;15(1):46–49. doi: 10.1128/aac.15.1.46

Protection from Gentamicin Nephrotoxicity by Cephalothin and Carbenicillin

Richard Bloch 1,†, Friedrich C Luft 1, Laura I Rankin 1, Rebecca S Sloan 1, Moo Nahm Yum 1, Douglas R Maxwell 1
PMCID: PMC352598  PMID: 426505

Abstract

In rats, cephalothin exerts a protective effect upon the nephrotoxicity of gentamicin. To examine the possibility that this effect is also observed with carbenicillin, we gave the following (milligrams per kilogram) to rats daily for 14 days: gentamicin alone, 60; gentamicin plus cephalothin, 100, 500, or 1,000; gentamicin plus carbenicillin, 50, 100, 250, 500, or 1,000. A 500-mg/kg dose of cephalothin afforded significant partial protection from gentamicin nephrotoxicity, as did a 100-mg/kg dose of carbenicillin. Increasing doses of either drug failed to increase protection. The data suggest that in rats not only does carbenicillin afford some protection from gentamicin nephrotoxicity, but also that it does so at a lower dose than cephalothin. These findings may in part explain the divergent observations regarding the nephrotoxicity of cephalothin-gentamicin combination therapy in rats and humans.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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