Longxinxin capsule is the extract of fresh earthworm, which is a substance extracted from the earthworm. It has the effect of activating blood circulation, and is mainly used in clinical practice to relieve clinical symptoms such as inflexibility of one side of the body, numbness of limbs, slurred speech and distorted eyes and mouth caused by ischemic stroke. It can also be used for the treatment of children’s shock and high fever because it has the effects of clearing heat and calming wind, calming asthma and diuresis. However, it should be noted that the side effects of this drug are not particularly clear, and it is best not to apply this drug if hemorrhagic stroke is present. During the application of this drug, it is important to actively control blood pressure, avoid the stimulation of alcohol and tobacco, keep blood sugar and blood lipids stable, and can be combined with anti-platelet drugs, such as aspirin enteric tablets and statins, to better play the role of this drug.