Atenolol (Atenova) 100mg Tablet 100's is a medication used to manage high blood pressure (hypertension) and to treat angina (chest pain). It is a type of beta-blocker, which works by blocking the effects of adrenaline on the heart and blood vessels, helping to lower heart rate, reduce blood pressure, and prevent strain on the heart. Atenolol is commonly prescribed for patients with cardiovascular conditions, including those recovering from a heart attack, as it helps reduce the risk of further heart-related issues. As with all medications, it's important to follow the prescribed dosage and consult with a healthcare provider for any concerns.