Background:Magnolia bark(Magnolia Officinalis REHD.&WILS.and Magnolia officinalis REHD.&WILS.VAR.biloba REHD.&WILS,Hou Po in Chinese),is widely applied in clini
Objective:Ephedrine hydrochloride(EH)is a major component from Ephedra sinica STAPF,which is used as a traditional Chinese herbal medicine.This study was design