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5. The concentration of their language 6. The use of smaller words and shorter sentences Metoprolol can be an anti-hypertensive (blood pressure) drug classified like a selective beta-1 receptor blocker, also called a beta adrenergic blocker. Metoprolol is sold within the brands Lopressor and Toprol-XL and is also accessible in immediate-release and prolonged-release formulations. In addition to high blood pressure, metoprolol is prescribed to treat conditions including angina pectoris (chest pain) abnormal heart rhythms, migraine, tremors, congestive heart failure, bleeding through the esophagus, negative effects of antipsychotics, and to prevent second strokes.