metoprolol extended-release - oral, Toprol XL (cont.)
PRECAUTIONS: Before taking metoprolol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: certain types of irregular heartbeats (e.g., sinus bradycardia, second or third degree atrioventricular block, sick sinus syndrome), cardiogenic shock, severe heart failure (overt or decompensated type).Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart failure (treated, compensated type), breathing problems (e.g., asthma, chronic obstructive lung disease), diabetes, overactive thyroid disease (hyperthyroidism), liver disease, blood circulation problems (e.g., Raynaud's disease), skin conditions (e.g., psoriasis), mental/mood disorders (e.g., depression), certain muscle disease (myasthenia gravis), a certain type of tumor (pheochromocytoma).Before having surgery, tell your doctor or dentist that you are taking this medication.If you have diabetes, this medication may mask the fast/pounding heartbeat you would usually feel when your blood sugar level falls too low (hypoglycemia). Other symptoms of a low blood sugar level such as dizziness or sweating are unaffected by this drug.This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position.This medication should be used only when clearly needed during pregnancy. Discuss the risks (e.g., low birth weight) and benefits with your doctor.This drug passes into breast milk. While there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.
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