1983, English, Article edition: Comparative in-vitro activity of temocillin (BRL 17421), a new penicillin Clarke, A.M.; Zemcoc, S.J.V.

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Physical Description
  • text/​html
Published
  • Oxford University Press
  • 1983-04-01 00:00:00.0
Language
  • English

Edition details

Title
  • Comparative in-vitro activity of temocillin (BRL 17421), a new penicillin
Author
  • Clarke, A.M.
  • Zemcoc, S.J.V.
Published
  • Oxford University Press
  • 1983-04-01 00:00:00.0
Physical Description
  • text/​html
Subjects
Notes
  • The activity in vitro of the new parenteral penicillin, temocillin, was determined by an a gardilution technique at two inocula against 201 recent clinical isolates and also against referencestrains that produced characterized β-lactamases. Ampicillin, ticarcillin, latamoxef (moxalactam) and cefoxitin were used as comparative agents. Temocillin showed no useful activity against Pseudomonas aeruginosa or the Bacteroides fragilis group but was highly activeagainst the Enterobacteriaceae, inhibiting all isolates (Serratia marcescens excepted) at ≤8 mg&​sol;1. The MIC 50 and MIC 50 were usually within one dilution and results with both inoculum sizes were similar. Temocillin also had good activity against Haemophilus influenzae and β-lactamase producing strains were as susceptible asnon β-lactamase producers. Neither for the Enterobacteriaceae nor for H. influenzae did a 1000-fold increase in inoculum result in a greater than two-fold increase in MIC. The above results implied excellent stability to β-lactamases and this was borne out by the activity of temocillin against strains containing chromosomal cephalosporinases, the ‘broad-spectrum’ Class IV enzyme and the plasmid mediated enzymes TEM-1, OXA-1 and SH V-1. The protein binding of temocillin was found to be 87&​percnt;.
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  • Copyright (C) 1983, The British Society for Antimicrobial Chemotherapy
Language
  • English
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