Genericart Isosorbide Mononitrate 20mg Tablet contains Isosorbide Mononitrate, a nitrate class medication primarily used for the prevention and management of angina pectoris due to coronary artery disease. This drug acts as a vasodilator by relaxing vascular smooth muscle, leading to the dilation of peripheral veins and arteries, which reduces myocardial oxygen demand and alleviates chest pain. The 20mg dosage is typically prescribed for maintenance therapy to prevent angina attacks rather than for acute relief. Isosorbide Mononitrate is well absorbed orally and has a prolonged duration of action, allowing once or twice daily dosing depending on clinical judgment. It is indicated for patients with chronic stable angina and may be used in combination with other antianginal agents. Common side effects include headache, dizziness, hypotension, and flushing, which are generally dose-dependent and tend to diminish with continued use. Caution is advised in patients with hypotension, severe anemia, or increased intracranial pressure. It is contraindicated with concurrent use of phosphodiesterase inhibitors due to the risk of severe hypotension. Patients should adhere to prescribed dosing schedules and avoid abrupt discontinuation to prevent angina exacerbation. Regular monitoring by a healthcare professional is recommended to optimize therapeutic outcomes and minimize adverse effects.