Metoprolol tartrate tablets side effects are usually related to the dose of the drug, common side effects are as follows: 1, circulatory system: visible palpitations, panic, tachycardia, and even cause transient deterioration of heart failure; 2, gastrointestinal system: common abdominal pain, diarrhea, nausea, vomiting, constipation, etc., rarely appear liver function damage; 3, nervous system: sometimes insomnia, abnormal sensation, dizziness, headache The nervous system: sometimes insomnia, abnormal sensation, dizziness, headache, easy fatigue, etc., but generally rarely depression, memory loss, anxiety, etc.; 4, respiratory system: bronchitis can be seen, sometimes leading to bronchial asthma, so that the patient shortness of breath, chest tightness, wheezing and other discomfort; 5, hematological system: generally rare, sometimes there can be a decrease in platelet count; 6, skin: very rare skin allergy symptoms; 7, ear, eye: rare cases of visual impairment, sometimes there can be dry eyes and other discomfort. Sometimes there may be discomfort such as dry eyes.