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Metoprolol for Chest Pain

If you have chest pain, your healthcare provider may prescribe metoprolol (Lopressor® and Toprol-XL®). Chest pain is the most common angina symptom. Angina is a type of heart disease that occurs when the heart muscle is not getting enough nutrient- and oxygen-rich blood for a short time. The inadequate blood flow is caused by narrowed coronary arteries (the blood vessels that supply blood to the heart).
When chest pain is treated with metoprolol, the drug works by blocking certain receptors in the body. As a type of beta blocker, metoprolol can help decrease heart rate and both systolic and diastolic blood pressure, as well as the workload of the heart. This means that the heart requires less blood and oxygen to work properly. By decreasing the workload of the heart, the drug can also decrease the number of angina attacks and increase exercise tolerance.
Metoprolol is effective in treating symptoms of angina (including chest pain), decreasing the number of attacks, and improving exercise tolerance. This occurs because the medicine decreases the workload of the heart. This, in turn, means that the heart needs less oxygen and nutrient-rich blood to function properly at any given level of effort. Metoprolol does not cure this type of heart disease, however.
(Click Metoprolol for a complete overview of how this medication can treat chest pain. This article also offers information on dosing guidelines, other uses of the drug, and possible side effects.)
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