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. 2016 Nov 7;11(11):e0165831. doi: 10.1371/journal.pone.0165831

Table 3. FICIs in combination of various antibiotics with GRA or GR-SU.

Number of strains
FICIa (GR-SU) FICI (GRA)
Antibiotics ≤0.5 >0.5~≤4.0 >4.0 ≤0.5 >0.5~≤4.0 >4.0
Oxacillin 0 8 0 2 6 0
tetracycline 1 7 0 0 8 0
gentamicin 8 0 0 8 0 0
chloramphenicol 1 7 0 0 8 0
ofloxacin 0 8 0 0 8 0
erythromycin 0 8 0 0 8 0

FICI: ≤0.5; synergy, >0.5~≤4.0; no interaction, >4.0; antagonism