Embeta XR 50 is a long-acting beta-blocker tablet (metoprolol succinate) that is primarily used to treat abnormal heart rhythms, high blood pressure, and angina. It can also be used to prevent migraines and lower the risk of heart attack or stroke. Fatigue, headaches, dizziness, and a sluggish heartbeat are common side effects that should only be discontinued or modified by a physician.

Even with medicine, chest tightness following a heart attack may be a sign of angina or another heart-related problem. To rule out any dangerous illnesses, it's critical to get medical help right away. For a full evaluation, speak with your physician or visit the emergency department.