the 50 % inhibitory concentrations ( ic50 ) of benzylpenicillin , streptomycin , sisomicin , gentamicin , tobramycin , kanamycin , amikacin , and butirosin were determined for 58 clinical isolates of streptococcus faecalis , 28 of which were recovered from cultures of blood samples from patients with endocarditis .
C0037209
sisomicin
C0017436
gentamicin