if the bactericidal concentrations with 3-hour or 6-hour exposure to antibiotics were used as the criterion , these concentrations of carbenicillin for p. aeruginosa , and benzylpenicillin for alpha-streptococcus were , in particular , unusually high compared with the conventionally determined bacteriostatic concentrations ( mics ) .
C0006976
carbenicillin
C0030827
benzylpenicillin