Table 1. Monolayer transport assay across the MDCK-MDR1 cells.

	Papp(A→B) (nm/s)	Papp(B→A) (nm/s)	Efflux Ratio
AMP 5μM	11.6±1.3	479.7±45.7	42.0±7.2
+10 μM VER	49.2±12.8**	496.0±11.4	10.6±2.8
+2 μM GF120918	359.2±105.6**	335.3±86.0	0.9±0.1
+10 μM HZ08	266.6±94.5**	427.9±81.8	1.7±0.2
VCR 1μM	3.2±1.0	19.9±2.8	6.4±1.1
+10 μM VER	8.7±2.9*	18.7±6.5	2.1±0.3
+2 μM GF120918	10.1±2.1**	11.8±1.8*	1.2±0.1
+10 μM HZ08	10.9±2.9*	15.3±4.6	1.5±0.7

Data are presented as mean±SD, n = 3, Significance levels

* P<0.05

** P<0.01

***P< 0.001.