Table 2. MICs of vancomycin and efflux pump inhibitors against E. faecium KU22001

Compound	MIC (mg/L)
Vancomycin	>512
CCCP	32
CPZ	64
Reserpine	128
Orthovanadate	>512

CCCP, carbonyl cyanide m-chlorophenylhydrazone; CPZ, chlorpromazine.