OBJECTIVE To study the phannacokinetics of Yuanhu Zhitong Dispersible Tablets in dogs. METHODS The tetrahydropalmatine concentration in dog plasm was determined by HPLC, pharmacokinetics paramete was calculated by DAS verl.O sofeware after dispersible and conventional tablets were given to dogs through single-dose, double-cycle crossing administration program. RESULTS The HPLC method established can be used for tetrahydropalmatine determination in plasm. Tetrahydropalmatine in dispersible tablets was descri...