Xiangdan injection should not be infused casually, drug infusion needs to have indications, and it needs to be noted that serious adverse reactions may occur after drug infusion, and the drug should be used according to the specification. The main ingredients of Xiangdan Injection are Salvia miltiorrhiza and Radix et Rhizoma, the main effect of these ingredients is to dilate blood vessels, which can increase the blood flow of coronary arteries, so it can be used in patients with coronary heart disease. Clinical adverse drug reactions are associated with irregular use of drugs, so detailed drug making inquiries need to be made before use, and those with allergies need to be used with caution, and the liquid should be checked for sedimentation, air leakage, and turbidity before actual use. If it appears, it should not be applied, follow the indications for infusion at the same time also need to pay attention to clarify the dosage and usage of drugs.