Isosorbide Mononitrate Tablets are not recommended to be taken every other day. Specific medication needs to follow the doctor’s instructions. Isosorbide mononitrate tablets is a vasodilator, can improve coronary blood supply, used for long-term treatment of coronary heart disease; angina pectoris prevention; myocardial infarction after persistent angina pectoris treatment; and digitalis and/or diuretics combined, chronic heart failure can be taken for a long time. Isosorbide mononitrate tablets orally in the gastrointestinal tract is completely absorbed, the effect can last for 6 hours, every other day to take is not able to maintain effective blood concentration, not to achieve the purpose of prevention and treatment of angina pectoris. Side effects of this product include dizziness, facial flushing, upright hypotension, tachycardia and so on. It is contraindicated in acute circulatory failure, severe hypotension, acute myocardial infarction with low filling pressure, severe anemia, glaucoma, and increased intracranial pressure. Warm tips to take medication should follow the doctor’s instructions, do not change without authorization to avoid adverse consequences.