Prescription Metoprolol Drug Information

You should not use metoprolol if you have a serious heart problem (heart block, sick sinus syndrome, slow heart rate), severe circulation problems, severe heart failure, or a history of slow heart beats that caused fainting. You should not use this medication if you are allergic to metoprolol, or other beta-blockers (atenolol, carvedilol, labetalol, nadolol, nebivolol, propranolol, sotalol, and others), or if you have: a serious heart problem such as heart block, sick sinus syndrome, or slow heart rate; severe circulation problems; severe heart failure (that required you to be in the hospital); or history of slow heart beats that have caused you to faint. To make sure metoprolol is safe for you, tell your doctor if you have: asthma, chronic obstructive pulmonary disease (COPD), sleep apnea, or other breathing disorder; diabetes (taking metoprolol may make it harder for you to tell when you have low blood sugar); liver disease; congestive heart failure; problems with circulation (such as Raynaud's syndrome); a thyroid disorder; or pheochromocytoma (tumor of the adrenal gland). FDA pregnancy category C. It is not known whether metoprolol will harm an unborn baby. Tell your doctor right away if you become pregnant while using this medication. See also: Pregnancy and breastfeeding warnings (in more detail) Metoprolol can pass into breast milk and may harm a nursing baby. Tell your doctor if you are breast-feeding a baby. Do not give this medication to anyone under 18 years old without medical advice.