the stability of ampicillin , piperacillin and cefotaxime , alone or in combination with either netilmicin or amikacin , was tested by microbiological methods at 29 degrees c ( ampicillin , also at 22 degrees c ) in an l-amino acid solution specially prepared for newborn infants .
C0031955
piperacillin
C0002680
ampicillin