after 2.0 g of ampicillin was given with probenecid , the serum levels during the 5- to 12-h period approached those achieved with 3.5 g of ampicillin plus probenecid , and actually exceeded levels attained during the same interval with 3.0 g of amoxicillin administered alone .
C0033209
probenecid
C0717424
ampicillin