Abstract:The compound Jimu oral liquid was prepared with three traditional herbal drugs:LoropetalumChinense,Callicarpa and Taraxacum mongolicum.It significantly reduces blood coagulationtime,increases the platelet count and promotes platelet aggregation induced by ADP.Alsoit possesses an analgesic antiinflammatory effect and a contractive effect on isolated uterus.Theoral LD50 of compound oral liquid of loropetal in mi(?)e was 339.6±39g/kg crude.when ratswere fed Compound oral liquid of loropetal 127g/kg/d,for 28 d,no remarkable changeswere found in visceral weight,hematological(except platelet)and histological examinations aswell as in hepatic and renal function tests.