Coronary artery disease is coronary atherosclerosis, betalactam generic name is metoprolol tartrate tablets, this kind of patients need to take this product for a long time, but when there is a slowing down of the heart rate, you can not eat. Patients with coronary atherosclerosis need to take metoprolol tartrate tablets for a long period of time because there is no cure for the disease, and the progression of the disease can only be controlled by taking medication. The purpose of taking metoprolol tartrate tablets is to control the heart rate and bring it back to normal rhythm. This product is mainly through the inhibition of sympathetic activity to slow down the heart rate, and can reduce the burden on the heart muscle, reduce myocardial oxygen consumption. When some patients with coronary artery atherosclerosis long-term high dose of metoprolol tartrate tablets, there may be transient slowing of the heart rate, such as the symptoms are not serious without stopping the drug; however, if the slowing of the heart rate is more serious, the heart rate of less than 50 beats per minute, according to the doctor’s request to stop, but do not stop the drug suddenly. Coronary atherosclerosis patients taking long-term metoprolol tartrate tablets should be aware that if you are allergic to any of the components of this product, have low blood pressure, cardiogenic shock and other conditions need to be prohibited. Some patients taking this product for a long time may have dizziness, headache and other symptoms, usually without special treatment, after stopping the drug symptoms will be relieved. If there is a suspicion of acute myocardial infarction, rapid increase in heart rate, need to take this product, should be under the guidance of a medical professional.