cefetamet and temafloxacin

A multilaboratory study was performed to establish broth microdilution MIC quality control (QC) guidelines for 10 investigational drugs which previously demonstrated significant activity against Haemophilus influenzae. MIC QC ranges for H. influenzae ATCC 49247 with Haemophilus test medium were determined by using multiple contemporary lots of Haemophilus test medium and the National Committee for Clinical Laboratory Standards' recommended numbers of replicate tests. On the basis of these results, QC ranges (generally modal MIC +/- one log2 dilution) are proposed for cefdinir, cefepime, cefetamet, cefpirome, ceftibuten, fleroxacin, temafloxacin, clarithromycin, RP59500, and trospectomycin. The proposed QC guidelines for clarithromycin and temafloxacin were recently accepted by the National Committee for Clinical Laboratory Standards.

Topics: Anti-Bacterial Agents; Cefdinir; Cefpirome; Ceftibuten; Ceftizoxime; Cephalosporins; Clarithromycin; Erythromycin; Fleroxacin; Fluoroquinolones; Haemophilus; Humans; Microbial Sensitivity Tests; Quality Control; Quinolones; Spectinomycin; Virginiamycin

Cefdinir (FK482), cefetamet (Ro 15-8074), CI-960, fleroxacin, lomefloxacin, and temafloxacin have potent activities against Neisseria gonorrhoeae. They were tested in a multilaboratory study to establish quality control guidelines. Quality control ranges for N. gonorrhoeae ATCC 49226 were determined by using multiple GC agar lots, three disk lots, and a number of test replicates consistent with the M23-T guidelines of the National Committee for Clinical Laboratory Standards. The MIC ranges included 2 to 4 log2 dilution steps. The recommended inhibition zone diameter ranges were generally 7 to 8 mm and included greater than or equal to 91.3% of all recorded study results.

Topics: Anti-Infective Agents; Cefdinir; Ceftizoxime; Cephalosporins; Diffusion; Fleroxacin; Fluoroquinolones; Microbial Sensitivity Tests; Neisseria gonorrhoeae; Quality Control; Quinolones