the in vitro activity of a new oral antimicrobial agent , norfloxacin ( mk-0366 ) , was compared with those of nalidixic acid , nitrofurantoin , co-trimoxazole , trimethoprim , sulfamethoxazole , cinoxacin , tetracycline , ampicillin , carbenicillin , and cephalexin against 628 urinary bacterial isolates .
C1136254
antimicrobial agent
C0039644
tetracycline