The name of the drug shows that it can tonify the middle and restore the function of arteries, mainly increasing the blood flow of coronary arteries and improving the resistance ability of the body. The main ingredients are Mai Dong, Wu Wei Zi and Red Ginseng, which can be used for palpitations, shortness of breath, dizziness, lack of strength manifested by exertional angina of coronary heart disease, and with poor digestion and weak pulse. Chronic left heart insufficiency due to coronary artery disease is also treated with this drug with good effect. The drug is usually used in an injectable preparation at the time of administration, and the drug is effective for about two weeks. During the course of the medication, women may occasionally experience increased bleeding during menstruation.