Table 5.

Synergistic interaction of C-L with five antibiotics.

Combination Group	Fractional Inhibitory Concentration (FIC) Index					p-Value
	C-L + Chloramphenicol	C-L + Thiamphenicol	C-L + Neomycin Sulfate	C-L + Penicillin G	C-L + Kanamycin
E. coli CVCC 245	1.00 ± 0.141 c	1.50 ± 0.001 a	0.313 ± 0.001 d	1.50 ± 0.003 a	1.25 ± 0.002 b	<0.01
S. aureus ATCC 25923	0.375 ± 0.005 c	0.188 ± 0.002 e	0.250 ± 0.004 d	1.13 ± 0.005 a	0.750 ± 0.003 b	<0.01

^a,b,c,d,e Means with different superscripts within the same row differ (p < 0.05).