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