combination therapy with an aminoglycoside and a beta-lactam has long been the cornerstone of therapy , and clinical success has been correlated with peak serum bactericidal levels of 1:8 in non-granulocytopenic patients and peak gentamicin and tobramycin levels greater than 8 micrograms/ml .
C0002556
aminoglycoside
C0017436
gentamicin