after administration of [ ampicillin-14c ] talampicillin , radioactivity was excreted in the urine of rats and dogs to a lesser extent ( 35 % in both species ) and only a small proportion of the dose was excreted in the bile ( 6 % in rats , less than 0.1 % in dogs ) .
C0002680
ampicillin
C0039266
talampicillin