Chinese patent medicines for stroke prevention mainly include Dahuoluo Pill, Cerebral Embolism Capsules, Sanqi Tongshu Capsules, etc. Herbs mainly include safflower, Chuanxiong rhizoma, Radix Rehmanniae Praeparata, Angelica Sinensis, etc. Dawuoluo Pill is composed of herbs, Wuzui Snake and Weiling Xian, which can dispel wind and relieve pain, remove dampness and phlegm, and relax tendons and activate collaterals. It is used for paralysis caused by stroke phlegm syncope (cold limbs or even fainting caused by excessive phlegm in the body after a stroke), and tendon constriction (spasm or convulsion due to the sensation of wind-cold). The adverse effects of the drug is not clear, pregnant women should not take, athletes should be careful. Cerebro-Embolism Capsule is composed of Pu Huang, Red Peony, Yu Jin and other drugs, which can activate blood circulation, dispel wind and resolve phlegm (dispel wind and resolve phlegm), used for wind, phlegm and blood paralysis caused by blockage of the veins and channels in ischemic stroke in the meridian in the acute stage and recovery stage. A small number of patients may experience noisy stomach and epigastric region (a feeling similar to hunger, emptiness with burning in the stomach), constipation, etc. It is prohibited for pregnant women and used with caution in labor. Panax notoginseng Tongshu Capsule consists of Panax notoginseng triol saponin, which can activate blood circulation, remove blood stasis, activate collaterals and open the veins, and is mainly used for cardio-cerebral vascular embolic diseases, mainly for It is mainly used for treating stroke, hemiplegia (inability to move one side of the limb freely), crooked mouth and tongue, awkward speech, and numbness of one side of the body. Individuals may have nausea after taking the medicine. Contraindicated in pregnant women, used with caution in women in labor, and contraindicated in cerebral hemorrhage. It is contraindicated in hemorrhagic stroke during bleeding, and should be used with caution for symptoms of stasis after bleeding. Herbs used to prevent stroke generally include saffron, chuanxiong, ripened dihuang, angelica, etc. However, the effect of a single drug is not obvious, so it can be used in combination as prescribed by the doctor. The use of drugs should be under the guidance of a doctor, not self-medication.