Panzhigouteng;Uncariae Scandentis Caulis Sources:The drug is the branch of Uncaria scandens(Smith)Hutch.(family Rubiaceae),growing in mountainous thin forest,distributed in Guangdong,Hainan,Guangxi,Guizhou and Yunnan. Actions and Indications:It is used to clear away heat-evil to stop the wind-syndrome,calm the liver and eliminate convulsion,for the treatment of convulsion,tic,headache due to liver-heat.