Objective:To observe the effect of Yu Xian Ling granula (YXLG) on the learning and memory capacity of epileptic model rats caused by pentetrazole (PTZ). Methods: Ten rats were randomly selected from the total 70 SD rats of clean grade as the blank control group. Orther 60 rats were mede in- to epileptic models with PTZ. Then the model rats were divided into three groups: YXLG group(YXLG), the valproate group(VPA) ,the model group(Model). Then the water maze text was carried out to evaluate the effect of YXLG on the learning and mem...