In Vitro Antibacterial Experiments of Qixingjian Decoction and Its Synergistic Interaction with Oxacillin against Clinical Isolates of Methicillin-Resistant Staphylococcus aureus

Table 3

QXJT and OX against MRSA.

MIC strains	QXJT(mg/mL)		OX(mg/mL)
MRSA2007118	18.75		4
MRSA2008043	37.5		1
	CIC	FICQXJT	FICOX	FICI
QXJT + OX	4.69 mg/mLQXJT + 1 mg/mLOX	0.25	0.25	0.5, synergism
	9.38 mg/mLQXJT + 0.25 mg/mLOX	0.25	0.25	0.5, synergism

MIC, minimum inhibitory concentration; CIC, combined inhibitory concentration; FIC, fractional inhibitory concentration; FICI, fractional inhibitory concentration index.