Metoprolol, sold under the brand names Lopressor and Toprol-XL among others, is a medication used to treat angina, high blood pressure and a number of conditions involving an abnormally fast heart rate. [5] Toprol-XL is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins). Toprol-XL is used to treat angina (chest pain) and hypertension (high blood pressure). Toprol-XL is also used to lower your risk of death or needing to be hospitalized for heart failure. Metoprolol (brand names Lopressor, Toprol XL, and Kapspargo) is a beta blocker prescribed to help lower blood pressure, reduce chest pain, and increase your chances of survival in people with heart failure or after a heart attack. Find patient medical information for Metoprolol (Lopressor, Toprol XL, others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Taking metoprolol with certain medications can cause unexpected reactions. Find out which combinations may be risky. TOPROL-XL is indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure lowers the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. Metoprolol is used alone or together with other medicines to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. Read on to learn about the side effects of metoprolol, including common, severe, and long-term side effects, and how to manage them. Metoprolol (Lopressor®) is a medication that lowers your blood pressure and heart rate, making it easier for your heart to pump blood to the rest of your body. Metoprolol is used to treat angina (chest pain) and hypertension (high blood pressure). Learn about side effects, interactions and indications.