The full name of isosorbide mononitrate is isosorbide mononitrate tablets, side effects include patients in the early stage of the drug may appear vasodilatory headache, after several days of continuous use, the symptoms can disappear, there may also be dizziness, facial flushing, upright low blood pressure and reflex tachycardia, and occasional patients with a significant drop in blood pressure, fainting, and aggravation of angina pectoris, and so on. Isosorbide mononitrate tablets are mainly used for the prevention of angina pectoris, long-term treatment of coronary heart disease, and persistent angina pectoris after myocardial infarction through the release of nitric oxide, which relaxes the vascular smooth muscle, dilates the peripheral arterial and venous blood vessels, and reduces myocardial oxygen consumption. For patients with acute myocardial infarction with low filling pressure, systolic blood pressure below 90 mmHg should be avoided as much as possible; it is forbidden for patients with severe anemia, glaucoma, increased intracranial pressure and nitro compounds allergy; it is used with caution in patients with aortic or mitral stenosis, postural hypotension, and renal insufficiency; and it is used with caution in pregnant women and lactating women. Medicine. The above content is for reference only, patients who need to use isosorbide mononitrate tablets, please follow the doctor’s instructions, do not blindly use the drug.