The main function of Danshen Injection is to promote blood circulation and nourish the heart, activate blood circulation and remove blood stasis, which is mainly used for coronary heart disease, angina pectoris, chest tightness and other symptoms. In the process of treating coronary heart disease, it plays the role of improving microcirculation and myocardial ischemia. Because of the effect of activating blood circulation and removing blood stasis, it is prohibited for patients with bleeding tendency and forbidden to be applied to infants, newborns and pregnant women. Danshen injection also has side effects, which can lead to panic, chest tightness, and arrhythmia, as well as elevated blood pressure and decreased blood pressure. Danshen injection can also have gastrointestinal side effects, which can lead to nausea, vomiting, abdominal distension, diarrhea, dry mouth and other adverse reactions, and for patients with anaphylactic reactions, it can cause itchy rash, as well as laryngeal edema, dyspnea and other symptoms, but also fever, chills and other conditions, and in severe cases, can lead to anaphylactic shock.