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Metoprolol

What is Metoprolol

Metoprolol is in a class of drugs called beta-blockers. Beta-blockers affect the heart and circulatory system.

Metoprolol is used to reduce hypertension (high blood pressure), to treat chest pain (angina), to treat heart failure, and to reduce the risk that a heart attack will recur.

Metoprolol may also be used for purposes other than those listed in this medication guide.

General medical information about Metoprolol

Do not stop taking Metoprolol without first talking to your doctor. Stopping Metoprolol abruptly may cause your condition to become worse.

Call your doctor immediately if you experience shortness of breath.

Use caution when driving, operating machinery, or performing other hazardous activities. Metoprolol may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

What you should find out before taking Metoprolol

Before taking Metoprolol, tell your doctor if you have:
- asthma;
- a heart problem such as low blood pressure, a slow heart rate, heart block, sick sinus syndrome, a pacemaker, heart failure, and others;
- diabetes;
- depression;
- thyroid disease;
- kidney disease;
- liver disease; or
- any type of circulatory disease.

You may not be able to take Metoprolol, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

Metoprolol is in the FDA pregnancy category C. This means that it is not known whether Metoprolol will harm an unborn baby. Do not take this medication without first talking to your doctor if you are pregnant or could become pregnant during treatment.

Metoprolol passes into breast milk in small amounts and may affect a nursing baby. Do not take Metoprolol without first talking to your doctor if you are breast-feeding a baby.

How should take Metoprolol

Take Metoprolol exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass of water.

Take Metoprolol with food or immediately following a meal.

Do not crush or chew the extended-release tablets and capsules (e.g., Toprol XL). The tablets can be divided in half if prescribed by your doctor and the half tablet should be swallowed whole, without crushing or chewing. These tablets are specially formulated to release the medication slowly in the body.

Do not stop taking Metoprolol without first talking to your doctor. Stopping Metoprolol abruptly may cause your condition to become worse.

Store this medication at room temperature away from moisture and heat.

If you miss a dose:

Take the missed dose as soon as you remember. If it is almost time for the next dose however, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose of this medication.

What happens if you overdose:

Seek emergency medical attention.

Symptoms of a Metoprolol overdose include a slow heart beat, shortness of breath, fainting, dizziness, weakness, confusion, nausea, and vomiting.

Avoid while taking Metoprolol

Use caution when driving, operating machinery, or performing other hazardous activities. Metoprolol may cause drowsiness, dizziness, and blood pressure changes. If you experience drowsiness or dizziness, avoid these activities.

Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking this medication.

Tell your doctor and dentist that you are taking this medication before having surgery.

Possible side effects of Metoprolol

If you experience any of the following serious side effects, stop taking Metoprolol and call your doctor immediately or seek emergency medical treatment:
- an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; hives);
- wheezing or shortness of breath;
- an unusually slow or irregular heartbeat;
- swelling of the feet and lower legs;
- leg pain or cramping;
- sudden weight gain (more than 2 pounds in one day or 5 pounds in one week);
- chest (heart) pain;
- unusually cold or blue feet and hands; or
- skin rash.

If you experience any of the following less serious side effects, continue taking Metoprolol and talk to your doctor:
- fatigue or confusion;
- headache or dizziness;
- weak pulse or mildly slow heart rate;
- diarrhea, constipation, gas, nausea, or vomiting;
- depression; or
- nightmares.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect Metoprolol

Before taking Metoprolol, tell your doctor if you are taking
- a heart medication such as nifedipine (Procardia, Adalat), reserpine (Serpasil), verapamil (Calan, Verelan, Isoptin), diltiazem (Cardizem, Dilacor XR), clonidine (Catapres), digoxin (Lanoxin), doxazosin (Cardura), guanadrel (Hylorel), prazosin (Minipress), or terazosin (Hytrin);
- a diabetes medication such as insulin, glyburide (Diabeta, Micronase, Glynase), glipizide (Glucotrol), chlorpropamide (Diabinese), or metformin (Glucophage);
- a nonsteroidal anti-inflammatory drug (NSAID) such as ibuprofen (Motrin, Advil, others), naproxen (Aleve, Anaprox, Naprosyn, others), ketoprofen (Orudis, Orudis KT, Oruvail), and others;
- a respiratory medication such as albuterol (Ventolin, Proventil, Volmax, others), bitolterol (Tornalate), metaproterenol (Alupent, Metaprel), pirbuterol (Maxair), terbutaline (Brethaire, Brethine, Bricanyl), or theophylline (Theo-Dur, Theochron, Theolair, others), and others;
- the stomach medication cimetidine (Tagamet, Tagamet HB); or
- prescription or over-the-counter cough medicines, cold medicines, or diet pills.

Drugs other than those listed here may also interact with Metoprolol or affect your condition. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including herbal products.

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B
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G
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H
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I
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K
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L
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M
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N
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T
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X
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