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. 1973 Dec;4(6):617–625. doi: 10.1128/aac.4.6.617

Activity of Five Aminoglycoside Antibiotics In Vitro Against Gram-Negative Bacilli and Staphylococcus aureus

Lowell S Young 1, William L Hewitt 1
PMCID: PMC444607  PMID: 4793881

Abstract

The in vitro susceptibility to BB-K8, butirosin, gentamicin, sisomicin, and tobramycin of seven groups of clinically significant gram-negative bacilli and Staphylococcus aureus was assessed by using the International Collaborative Study-World Health Organization criteria. The activity of gentamicin, sisomicin, and tobramycin generally paralleled each other. Sisomicin was the most potent compound by weight and usually demonstrated the most rapid rate of killing. BB-K8 and butirosin were less potent, but higher serum levels may be achieved with these agents. BB-K8 generally showed the greatest ratio between achieveable mean peak serum levels and concentrations needed to inhibit [Formula: see text] of each group of organisms tested. Additionally, BB-K8 was active against six of seven highly gentamicin-resistant strains. All of these antibiotics showed diminished activity at pH 6.4 but only gentamicin and sisomicin showed occasionally enhanced activity at pH 8.4.

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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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