Absorbance at 600 nm	30 min post-treatment		48 h post-treatment		Clearance (%)
Absorbance at 600 nm	Blank	Evans Blue	Blank	Evans Blue	Clearance (%)
Dangshen	0.010	1.40 ± 0.41	0.032	0.030 ± 0.002	100
Renshen	0.005	1.90 ± 0.36	0.031	0.024 ± 0.003	100
Xiyangshen	0.013	1.60 ± 0.20	0.026	0.023 ± 0.002	100