. 2018 May 30;18:169. doi: 10.1186/s12906-018-2231-8

Table 1.

Minimal inhibitory concentration (MIC) and fractional inhibitory concentration index (FICI) of Tanreqing, vancomycin and linezolid against MRSA

Strain	Agent	Minimal inhibitory concentration (μg/ml)		FICI	Outcome
Strain	Agent	Alone	Combination	FICI	Outcome
MRSA ATCC 43300	Tanreqing Vancomycin	4125 2.5	2063 1.25	1	Addition
MRSA ATCC 43300	Tanreqing Linezolid	4125 2.5	516 1.25	0.625	Addition

Results are means of three different experiments. The results were interpreted as synergy (FICI ≤0.5), addition (0.5 < FICI ≤1), indifference (1 < FICI ≤2) or antagonism (FICI > 2)