low mortality rates ( 0-5 % ) at 48 h were obtained when antibiotics with minimal or no inoculum effect ( ampicillin , cefuroxime , cefoxitin and gentamicin ) were administered to yield serum levels 5 to 14 times the mic , while antibiotics with a pronounced inoculum effect ( piperacillin , cefotaxime and aztreonam ) had to be administered to yield serum levels 57 to more than 1000 times the mic determined with a standard ( low ) inoculum .
C0002680
ampicillin
C0031955
piperacillin