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 purposes other than those listed in this medication guide.

Common uses

This medicine (Lopressor - Metoprolol) is a beta-blocker used to treat high blood pressure and angina pectoris (chest pain). It is also used after a heart attack to improve survival. Controlling high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medicine (Lopressor - Metoprolol) may also be used to treat other conditions as determined by your doctor.

Before using

Warning: if you have angina or have had heart problems, do not suddenly stop using this medicine (Lopressor - Metoprolol) without first consulting your doctor. If your doctor decides you should no longer use this medicine (Lopressor - Metoprolol), you must stop this medicine (Lopressor - Metoprolol) gradually according to your doctor's instructions.

Do not take this medicine (Lopressor - Metoprolol) if you are also taking mibefradil. Additional monitoring of your dose or condition may be needed if you are taking amiodarone, barbiturates, birth control pills, cimetidine, disopyramide, flecainide, indomethacin, methimazole, propylthiouracil, quinidine, or verapamil. Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding.

Use of this medicine (Lopressor - Metoprolol) is not recommended if you have a history of heart block. Contact your doctor or pharmacist if you have any questions or concerns about using this medicine (Lopressor - Metoprolol).

Directions

Follow the directions for using this medicine (Lopressor - Metoprolol) provided by your doctor. Take this medicine (Lopressor - Metoprolol) either always with food or always on an empty stomach at the same time(s) each day.

Store this medicine (Lopressor - Metoprolol) at room temperature, away from heat and light. If you miss a dose of this medicine (Lopressor - Metoprolol), take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Cautions

Do not stop taking this medicine (Lopressor - Metoprolol) without checking with your doctor. Before you have any medical or dental treatments, emergency care, or surgery, tell the doctor or dentist that you are using this medicine (Lopressor - Metoprolol). This medicine (Lopressor - Metoprolol) may cause drowsiness or dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to this medicine (Lopressor - Metoprolol). Before taking any new medicine (Lopressor - Metoprolol), either prescription or over-the-counter, check with your doctor or pharmacist. This includes any medicine (Lopressor - Metoprolol)s used to treat colds or congestion. If your doctor has instructed you to check your blood pressure and heart rate regularly, be sure to do so.

For women: if you plan on becoming pregnant, discuss with your doctor the benefits and risks of using this medicine (Lopressor - Metoprolol) during pregnancy. This medicine (Lopressor - Metoprolol) is excreted in breast milk. If you are or will be breast-feeding while you are using this medicine (Lopressor - Metoprolol), check with your doctor or pharmacist to discuss the risks to your baby. For patients with diabetes mellitus: this medicine (Lopressor - Metoprolol) may mask signs of low blood sugar such as a rapid heartbeat. Check blood glucose levels regularly.

Possible side effects

Side effects, that may go away during treatment, include mild drowsiness; lightheadedness or dizziness; or unusual tiredness or weakness. If they continue or are bothersome, check with your doctor. Check with your doctor as soon as possible if you experience difficulty breathing. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.This drug may cause following serious side effects : an allergic reaction (difficulty breathing, closing of your throat, swelling of your lips, tongue, or face, or hives), difficulty breathing, little or no urine, an irregular heartbeat or changes in your heartbeat, chest pain, severe dizziness or fainting, or signs of an infection including a sore throat or a fever. Other, less serious side effects may be more likely to occur. Continue to take Lopressor and talk to your doctor if you experience mild dizziness or lightheadedness, headache, unusual fatigue or weakness, dry, tickling cough, muscle cramps, numbness or tingling in the hands, feet, arms, or legs, nausea, vomiting, or diarrhea, a rash, or impotence.

If you take too much

If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include very slow heart rate, severe dizziness, fainting, weakness, and difficult or slowed breathing.

Additional information

Do not share this medicine (Lopressor - Metoprolol) with others for whom it was not prescribed. Do not use this medicine (Lopressor - Metoprolol) for other health conditions. Keep this medicine (Lopressor - Metoprolol) out of the reach of children. If using this medicine (Lopressor - Metoprolol) for an extended period of time, obtain refills before your supply runs out.If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include a slow heart beat, shortness of breath, fainting, dizziness, weakness, confusion, nausea, and vomiting.

Drug interactions

Drug interactions can result in unwanted side effects or prevent a medicine (Lopressor - Metoprolol) from doing its job. Some medicine (Lopressor - Metoprolol)s or medical conditions may interact with this medicine (Lopressor - Metoprolol). Inform your doctor or pharmacist of all prescription and over-the-counter medicine (Lopressor - Metoprolol) that you are taking.Tell your doctor of all nonprescription and prescription medication you are using, especially : 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 Lopressor.
Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines.

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