TABLE 2.

Effect of efflux pump inhibitor PAβN on various antibiotic susceptibilities

E. cloacae strain	MIC (μg/ml)
	Ceftazidime		Cefotaxime		Cefepime		Ertapenem		Imipenem		Meropenem		Ciprofloxacin
	−PAβN	+PAβN	−PAβN	+PAβN	−PAβN	+PAβN	−PAβN	+PAβN	−PAβN	+PAβN	−PAβN	+PAβN	−PAβN	+PAβN
ATCC 13047	3	2	2	1.5	0.19	0.5	0.064	0.064	0.19	0.19	0.032	0.032	0.023	0.012
ES24	>256	>256	24	16	16	16	2	2	0.25	0.25	0.25	0.25	>32	2
ER24	>256	>256	>256	64	24	24	>32	12	4	2	6	0.75	>32	3