Pulsatilla is an extract of the Chinese herbal medicines honeysuckle, hyssop, dendrobium and genistein, which has cardioprotective and antithrombotic effects. It can also reduce the content of fibrinogen in plasma, thus prolonging prothrombinogen time, so it has the effect of improving microcirculation and blood rheology, which can make microcirculatory disorders relieved and can dilate blood vessels to some extent. It is mainly used to treat thrombo-occlusive vasculitis and atherosclerotic occlusive disease. It can also be used to treat cerebral infarction-induced hemiplegia, distorted mouth and tongue, partial body numbness and unfavorable speech. The Chinese herbal ingredients of vincristine also often cause allergic reactions, so extra care should be taken during the use of the drug.