What is metoprolol?
Metoprolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and circulation (blood flow through arteries and veins).
Metoprolol is used to treat angina (chest pain) and hypertension (high blood pressure). It is also used to treat or prevent heart attack.
Metoprolol may also be used for other purposes not listed in this medication guide.
What is the most important information I should know about metoprolol?
You should not use this medication if you are allergic to metoprolol, or if you have a serious heart problem such as heart block, sick sinus syndrome, or slow heart rate.
Before taking metoprolol, tell your doctor if you have congestive heart failure, low blood pressure, circulation problems, pheochromocytoma, asthma or other breathing problems, diabetes, depression, liver or kidney disease, a thyroid disorder, or severe allergies.
Metoprolol may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Drinking alcohol can increase certain side effects of metoprolol.
Do not stop taking metoprolol without first talking to your doctor. Stopping suddenly may make your condition worse.
If you need surgery, tell the surgeon ahead of time that you are using metoprolol.
Metoprolol is only part of a complete program of treatment for hypertension that may also include diet, exercise, and weight control. Follow your diet, medication, and exercise routines very closely if you are being treated for hypertension.
If you are being treated for high blood pressure, keep using this medication even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.
What should I discuss with my healthcare provider before taking metoprolol?
You should not use this medication if you are allergic to metoprolol, or if you have a serious heart problem such as heart block, sick sinus syndrome, or slow heart rate.
If you have any of these other conditions, you may need a dose adjustment or special tests:
congestive heart failure;
low blood pressure;
pheochromocytoma;
problems with circulation (such as Raynaud's syndrome);
asthma, bronchitis, emphysema;
diabetes;
depression;
liver or kidney disease;
a thyroid disorder; or
severe allergies.
FDA pregnancy category C. It is not known whether metoprolol will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.
Metoprolol can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.