Tartaric acid generally refers to metoprolol tartrate tablets, mild coronary heart disease eat metoprolol tartrate tablets for a year and a half 1 tablet a day divided into two, if no adverse reactions during the medication, it is generally not recommended to stop the medication, continue to take. If side effects occur after taking the drug and can not tolerate, you can follow the doctor’s advice to stop the drug. Metoprolol tartrate tablets are mainly used for the treatment of coronary heart disease, heart failure and other diseases. Patients with coronary heart disease usually need to take Metoprolol Tartrate Tablets for a long period of time as prescribed by the doctor, and usually do not need to stop taking the drug if there is no adverse reaction during the period of taking the drug. Some patients may experience adverse reactions such as headache, dizziness, nausea and vomiting after taking the drug. Metoprolol tartrate tablets should not be taken if the patient suffers from sick sinus node syndrome, decompensated heart failure or other diseases. Metoprolol tartrate tablets should also not be taken by patients with allergy to the components of the drug or severe peripheral vascular disease with risk of gangrene. Patients with coronary artery disease should seek medical advice as soon as possible if they experience any discomfort while taking metoprolol tartrate tablets.