CUSTOMER INFORMATION SHEET CIS006 Antimicrobial Agents with Bactericidal and Bacteriostatic Modes of Action
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16263 B - en - 2012/07 CUSTOMER INFORMATION SHEET CIS006 Antimicrobial agents with bactericidal and bacteriostatic modes of action GENERAL RECOMMENDATIONS FOR READING OF Etest MIC ENDPOINTS: Cidal drugs – at complete inhibition Static drugs – at 80-90% inhibition Important observation: Antimicrobial agents can exhibit a mixture of static and cidal effects depending on the drug concentration, organism load and type of organism being affected. Antimicrobial Class Antimicrobial Subclass Agent Code Mode of action Antibiotic Penicillins Penicillin Benzylpenicillin PG Bactericidal Aminopenicillin Amoxicillin AC Bactericidal Ampicillin AM Bactericidal Ureidopencillin Piperacillin PP Bactericidal Carboxypenicillin Ticarcillin TI Bactericidal Methoxypenicillin Temocillin TMO Bactericidal Isoxazolyl penicillin Oxacillin OX Bactericidal Amidinopenicillin Mecillinam MM Bactericidal Phenoxypenicillins Phenoxymethylpenicillin PV Bactericidal β-lactam/β-lactamase Amoxicillin/clavulanic acid XL Bactericidal inhibitor combinations Ampicillin/sulbactam AB Bactericidal Piperacillin/tazobactam PTc Bactericidal Ticarcillin/clavulanic acid TLc Bactericidal Cefoperazone/sulbactam CPS Bactericidal β-lactamase inhibitor Penicillanic acid sulfone Sulbactam SUL Bactericidal Cephems (parenteral) Cephalosporin I Cephalothin CE Bactericidal Cephalosporin II Cefuroxime XM Bactericidal Cephalosporin III Cefoperazone CP Bactericidal (extended spectrum cephalosporins) Cefotaxime CT Bactericidal Cefodizime FZ Bactericidal Ceftizoxime CZ Bactericidal Ceftazidime TZ Bactericidal Ceftriaxone TX Bactericidal Cephalosporin IV Cefepime PM Bactericidal (extended spectrum cephalosporins) Cefpirome CR Bactericidal Ceftobiprole BPR Bactericidal Cephamycin Cefotetan CN Bactericidal Cefoxitin FX Bactericidal Cephems (oral) Cephalosporin Cefaclor CF Bactericidal Cefdinir CD Bactericidal Cefditoren FD Bactericidal Cefixime IX Bactericidal bioMérieux SA English - 1 Etest® CIS006 - Antimicrobial agents with bactericidal and bacteriostatic modes of action 16263 B - en - 2012/07 Antimicrobial Class Antimicrobial Subclass Agent Code Mode of action Antibiotic Cephems (oral) cont. Cefpodoxime PX Bactericidal Cefprozil FP Bactericidal Ceftibuten CB Bactericidal Cefalexin CX Bactericidal Monobactams Aztreonam AT Bactericidal Penems Carbapenems Ertapenem ETP Bactericidal Imipenem IP Bactericidal Meropenem MP Bactericidal Doripenem DOR Bactericidal Aminocyclitols Spectinomycin SC Bactericidal Aminoglycosides Amikacin AK Bactericidal Gentamicin GM Bactericidal Kanamycin KM Bactericidal Netilmicin NC Bactericidal Streptomycin SM Bactericidal Tobramycin TM Bactericidal Ansamycins Rifamycin B Rifampicin RI Bactericidal Quinolones Quinolone Nalidixic acid NA Bactericidal Fluoroquinolone Ciprofloxacin CI Bactericidal Gatifloxacin GA Bactericidal Gemifloxacin GEM Bactericidal Levofloxacin LE Bactericidal Moxifloxacin MX Bactericidal Norfloxacin NX Bactericidal Ofloxacin OF Bactericidal Pefloxacin PE Bactericidal Sparfloxacin SO Bactericidal Enrofloxacin EF Bactericidal Folate pathway Diaminopyrimidine Trimethoprim TR Bacteriostatic inhibitors Trimethop./sulfamethoxazole TS Bacteriostatic Sulphonamide Sulfadiazine SU Bacteriostatic Sulfamethoxazole SX Bacteriostatic Phosphonic acids Fosfomycin FM Bactericidal * Lincosamides Clindamycin CM Bacteriostatic Cyclic peptides Bacitracin BA Bactericidal Lipopolypeptide Daptomycin DPC Bactericidal Polymyxin Colistin (polymyxin E) CO Bactericidal Polymyxin B PO Bactericidal * Note for Fosfomycin: - When numerous macrocolonies are present in inhibition ellipses, read the MIC where these colonies are completely inhibited. A few (1 to 5) colonies can be ignored. - When zone edges are hazy, read the MIC at the bacteriostatic endpoint of 80% inhibition. bioMérieux SA English - 2 Etest® CIS006 - Antimicrobial agents with bactericidal and bacteriostatic modes of action 16263 B - en - 2012/07 Antimicrobial Class Antimicrobial Subclass Agent Code Mode of action Antibiotic Macrolides Azalide Azithromycin AZ Bacteriostatic Macrolide Clarithromycin CH Bacteriostatic Dirithromycin DT Bacteriostatic Erythromycin EM Bacteriostatic Roxithromycin RO Bacteriostatic Nitrofurans Nitrofurantoin NI Bactericidal Nitroimidazoles Metronidazole MZ Bactericidal Oxazolidinones Linezolid LZ Bacteriostatic Glycopeptides Glycopeptide Vancomycin VA Bactericidal Lipoglycopeptide Teicoplanin TP Bactericidal Telavancin TLV Bactericidal Phenicols Chloramphenicol CL Bacteriostatic Streptogramins Quinupristin/dalfopristin QDA Bacteriostatic Tetracyclines Doxycycline DC Bacteriostatic Minocycline MC Bacteriostatic Tetracycline TC Bacteriostatic Glycylcyclines Tigecycline TGC Bacteriostatic Fusidanes Fusidic acid FU Bacteriostatic Pseudomonic acids Mupirocin MU Bactericidal Pleuromutilin Retapamulin RET Bacteriostatic Antifungal Polyenes Amphotericin B AP Fungicidal Azoles Imidazole Ketoconazole KE Fungistatic Triazole Fluconazole FL Fungistatic Itraconazole IT Fungistatic Voriconazole VO Fungistatic Posaconazole POS Fungistatic Echinocandins Caspofungin CS Fungistatic Anidulafungin AND Fungistatic Micafungin MYC Fungistatic Pyrimidines Fluorinated pyrimidine Flucytosine FC Fungistatic Antimycobacterial (Various classes of antibiotics may also be active against mycobacteria) Ethambutol EB Bactericidal Ethionamide ET Bactericidal Isoniazid IZ Bactericidal Etest technical information is available at www.biomerieux.com/techlib. 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