The main function of Pulsatilla is to clear heat and nourish Yin, invigorate blood circulation and remove blood stasis, and the main ingredients are Oxalis, Radix et Rhizoma Ginseng, Dendrobium, and Goldenseal. It is mainly used for the symptoms of 1-2 stage atherosclerotic occlusive disease and thrombo-occlusive disease, such as coldness, soreness, numbness, intermittent claudication, rest pain, and also for acute or subacute venous thrombosis of the lower limbs, causing some symptoms such as local swelling, pain, increased skin temperature, or abnormal skin color. In addition, this drug is also used for the sequelae caused by mild to moderate cerebral infarction during the recovery period, and the effect is relatively good. The side effect of this drug is that a small number of patients may experience nausea, epigastric distention or loose stools after taking this drug, but such gastrointestinal reactions are generally mild and can be relieved by stopping the drug. However, patients with cerebral hemorrhage need to use caution, and patients with a history of asthma should also try to avoid using it.