Objective To establish a method for determination of oxymatrine and adefovir dipivoxil in human serum. Methods RPHPLC method was used,with C18 column at the standard of 250 mm × 4. 6 mm,methanol-water( 70∶ 30) as mobile phase. The flow rate was 1. 1 m L·min-1,with the detection wavelength at 229 nm. Results The reserve time of oxymatrine in human blood serum was 4.6 min. The linearity range of standard curve was 0. 0125 ~ 2 mg·L-1( r = 0. 999 2). The reserve time of adefovir dipivoxil in human blood serum w...