The efficacy of Salvia miltiorrhiza Injection is to promote blood circulation, eliminate blood stasis in the body, support heart qi, and harmonize blood vessels. This product is mainly used in the clinic for the treatment of coronary heart disease chest tightness, angina pectoris and other diseases. This drug is yellowish brown to brownish red clear liquid, for pure Chinese medicine preparation, should not be mixed with other drugs in the same container, improper preservation may affect the quality of products, so before use must be checked against the light, found that the liquid appeared turbidity, precipitation, discoloration, leakage and other phenomena can not be used, it should be sealed to keep out of the light as well. A small portion of the population will take the product after an allergic reaction, once an allergic reaction should be immediately discontinued, patients with a history of allergy or serious adverse reactions to this class of drugs is prohibited. This drug should be used under the supervision of a physician.