Beta-blockers, such as metoprolol and atenolol, slow the heart rate, reduce the work done by the heart and reduce the blood pressure. These effects reduce the heart's demand for oxygen. Beta-blockers can reduce the symptoms of angina. In those who have suffered a heart attack, beta-blockers reduce the risk for death and reduce the risk for another heart attack.

Beta-blockers for the treatment of angina:

• Metoprolol (Lopressor, Toprol XL)
• Propranolol (Inderal)
• Atenolol (Tenormin)