Treatment of experimental Salmonella typhimurium infection in mice with lomefloxacin

Abstract
To evaluate the difluorinated quinolone lomefloxacin in murine typhoid, mice were inoculated intraperitoneally with the LT-2 strain of Salmonella typhimurium and treated with graded doses of the drug given once daily by an orogastric needle. Treatment with lomefloxacin for seven days reduced mortality with a 50% effective dose of 2.5-7.8 mg/kg/day. When given once daily for three days, doses .gtoreq. 5 mg lomefloxacin/kg/day caused significant reductions in splenic counts of S. typhimurium and prevented the inflammatory response to infection in the spleen.

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