There is no specific time to take cardiac blood supply insufficiency, clinically, generally under the guidance of the physician oral 2~3 months, symptoms can be discontinued after the improvement of the drug. 1. Heart can be used to alleviate coronary heart disease patients with chest pain and chest tightness and other symptoms, patients with coronary heart disease can take heart can be appropriate; heart can be used in the treatment of coronary heart disease auxiliary drugs, and to improve the symptoms, do not need long-term oral, it is recommended to comply with the doctor’s instructions to take 2 to 3 months after stopping the drug. 2. Patients with insufficient blood supply to the heart should be treated in a formal way, such as oral aspirin, atorvastatin, metoprolol and other drugs, for cardiac kosher can be taken for a short period of time, prolonged use of adverse reactions may increase. Description of the instructions: adverse effects are not clear Cardiac Kesu should be used under the guidance of a Chinese medicine practitioner’s identification, and the drug should be discontinued in time after the condition improves to avoid damage to the body.