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. 1988 Jan;32(1):153-5.
doi: 10.1128/AAC.32.1.153.

Increase in permeability of Escherichia coli outer membrane by local anesthetics and penetration of antibiotics

B Labedan  1
Affiliations

Increase in permeability of Escherichia coli outer membrane by local anesthetics and penetration of antibiotics

B Labedan. Antimicrob Agents Chemother. 1988 Jan.

Abstract

The MICs of several antibiotics (both hydrophobic and hydrophilic) which penetrate very poorly into intact Escherichia coli cells were found to be 2- to 10-fold decreased in the presence of low doses of various local anesthetics (procaine, dibucaine, tetracaine, chlorpromazine, and quinine). The concentrations of anesthetics necessary for this effect have no adverse effect on cell growth and are markedly lower than those concentrations used clinically.

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