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Table 2 FIC index values for polymyxin B and resveratrol against MDR bacterial isolates

From: Resveratrol enhances the antimicrobial effect of polymyxin B on Klebsiella pneumoniae and Escherichia coli isolates with polymyxin B resistance

Isolate FIC of Polymyxin B FIC of Resveratrol FIC index Interpretation
1 0.25 0.125 0.375 Synergistic
3 0.25 0.125 0.375 Synergistic
5 0.25 0.125 0.375 Synergistic
7 0.25 0.03125 0.28125 Synergistic
10 0.25 0.0625 0.3125 Synergistic
11 0.25 0.125 0.375 Synergistic
12 0.125 < 0.0625 < 0.1875 Synergistic
15 0.125 0.03125 0.15625 Synergistic
18 0.25 0.0625 0.3125 Synergistic
19 0.25 0.0625 0.3125 Synergistic
22 0.25 0.0625 0.3125 Synergistic
23 0.25 0.25 0.5 Synergistic
47 0.125 0.0625 0.1875 Synergistic
50 0.25 0.03125 0.28125 Synergistic