Table 2.

MIC and MBC values (mg/L) and the associated FICI and FBCI of two-drug combinations for M. xenopi

	FICI			FBCI
Drugs	MIC	value	interpretation	MBC	value	interpretation
RIF/EMB	2/4	<0.325	synergism	2/4	0.325	synergism
RFP/EMB	0.25/4	<0.325	synergism	0.5/4	0.325	synergism
MXF/EMB	0.5/2	<0.325	synergism	0.5/2	0.325	synergism
MXF/CLR	0.5/0.5	<0.325	synergism	0.5/2	<0.5	synergism

RIF, rifampicin; RFP, rifapentine; CLR, clarithromycin; MXF, moxifloxacin; EMB, ethambutol.