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. 2007 Apr 16;51(6):2070–2077. doi: 10.1128/AAC.01472-06

TABLE 3.

FIC indexes for spermine in combination with antibiotics in E. coli and S. aureus

Organism Antibiotic in combination with spermine FIC index
E. coli K-10 Carbenicillin 0.375
Chloramphenicol 0.375
Penicillin G 0.25
S. aureus Mu50 Ampicillin 0.25
Oxacillin 0.188
Penicillin G 0.25