by altering the perfusate to contain either 60 microm or 240 microm taurocholate , we found variance in bile salt output from 27 +/- 1 to 115 +/- 2 mumol/h , yet this alteration had little effect on the output of ampicillin ( perfusate concentration of 20 micrograms/ml ) , 73 +/- 7 versus 74 +/- 12 micrograms/h , or piperacillin ( perfusate concentration 100 micrograms/ml ) , 10 +/- 1 versus 11 +/- 2 mg/h .
C0002680
ampicillin
C0031955
piperacillin