TABLE 4.

PAE of ciprofloxacin, tetracycline, and erythromycin alone and in combination with RP2 against S. aureus SA1199B, XU212 and RN4220-MsrA, respectively.

Strain	Regimen	Mean PAE (h) ± SD
		0.25 MIC	0.5 MIC	1 MIC
S. aureus SA1199B	Ciprofloxacin	0.43 ± 0.14	1.05 ± 0.19	1.43 ± 0.16
	Ciprofloxacin + RP2 (32 μg/mL)	1.68 ± 0.13	2.15 ± 0.15	3.33 ± 0.18
S. aureus XU212	Tetracycline	0.76 ± 0.13	1.2 ± 0.17	2.1 ± 0.14
	Tetracycline + RP2 (32 μg/mL)	1.93 ± 0.12	2.45 ± 0.08	3.4 ± 0.25
S. aureus RN4220-MsrA	Erythromycin	0.46 ± 0.13	1.08 ± 0.17	1.82 ± 0.14
	Erythromycin + RP2 (32 μg/mL)	1.77 ± 0.12	2.24 ± 0.08	3.32 ± 0.25

The results presented correspond to the average of three independent assays plus standard deviation (±SD).