Antichlamydial Activity of Ofloxacin

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Abstract
The in vitro activity of ofoxacin, a new pyridone-carboxylic acid, against 11 strains of Chlamydia trachomatis and six strains of Chlamydia psittaci was determined. All test strains of both species were inhibited by 0.39 .mu.g of ofloxacin per ml. The antichlamydial activity of ofloxacin was comparable to that of doxycycline and four- to eightfold less than that of minocycline. The results of this susceptibility test, coupled with those of previous pharmacokinetic analyses of ofloxacin, warrant further evaluation of its clinical usefulness against chlamydial infections.