Metoprolol (Generic Lopressor) is used to treat high blood pressure. It also is used to prevent angina (chest pain) and heart attacks.

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Manufacturer: AstraZeneca
Sold Under Brand Name: Lopressor
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Quantity

Strength

Price (USD)

30 Cap(s) 25mg Metoprolol $8.00 60 Cap(s) 25mg Metoprolol $19.00 90 Cap(s) 25mg Metoprolol $27.00 30 Cap(s) 50mg Metoprolol $15.00 60 Cap(s) 50mg Metoprolol $29.00 180 Cap(s) 50mg Metoprolol $81.00 30 Tab(s) 100mg Metoprolol $14.00 60 Tab(s) 100mg Metoprolol $26.00 90 Tab(s) 100mg Metoprolol $38.00 180 Cap(s) 100mg Metoprolol $128.00

GENERIC NAME: Metoprolol
BRAND NAME: Lopressor

IMPORTANT WARNING:
Do not stop taking Metoprolol without talking to your doctor. Suddenly stopping Metoprolol may cause chest pain or heart attack. Your doctor will probably decrease your dose gradually.

Why is Metoprolol prescribed?
Metoprolol is used alone or in combination with other medications to treat high blood pressure. It also is used to prevent angina (chest pain) and to treat heart attacks. Extended-release (long-acting) Metoprolol also is used in combination with other medications to treat heart failure. Metoprolol is in a class of medications called beta blockers. It works by slowing the heart rate and relaxing the blood vessels so the heart does not have to pump as hard.

How should Metoprolol be used?
Metoprolol comes as a tablet and an extended-release tablet to take by mouth. The regular tablet is usually taken once or twice a day with meals or immediately after meals. The extended-release tablet is usually taken once a day. To help you remember to take Metoprolol, take it around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Metoprolol exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

The long-acting tablet may be split. Swallow the whole or half tablets whole; do not chew or crush them.

Your doctor may start you on a low dose of Metoprolol and gradually increase your dose.

Metoprolol controls high blood pressure and angina but does not cure them. Extended-release Metoprolol controls heart failure but does not cure it. It may take a few weeks before you feel the full benefit of Metoprolol. Continue to take Metoprolol even if you feel well.

Other uses for Metoprolol
Metoprolol is also used sometimes to prevent migraine headaches and to treat irregular heartbeat and movement disorders caused by medications for mental illness. Talk to your doctor about the possible risks of using Metoprolol for your condition.

Metoprolol may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?
Before taking Metoprolol,

tell your doctor and pharmacist if you are allergic to Metoprolol, acebutolol (Sectral), atenolol (Tenormin, in Tenoretic), betaxolol (Kerlone), bisoprolol (Zebeta, in Ziac), carvedilol (Coreg), Esmolol (Brevibloc), labetalol (Trandate), nadolol (Corgard, in Corzide), pindolol, propranolol (Inderal, Inderal LA, Innopran XL, in Inderide), sotalol (Betapace, Betapace AF, Sorine), timolol (Blocadren, in Timolide), any other medications, or any of the ingredients in Metoprolol tablets. Ask your pharmacist for a list of the ingredients.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention any of the following: bupropion (Wellbutrin), cimetidine (Tagamet), clonidine (Catapres), diphenhydramine (Benadryl), fluoxetine (Prozac, Sarafem), hydroxychloroquine, paroxetine (Paxil), propafenone (Rythmol), quinidine (Quinaglute, Quinidex), ranitidine (Zantac), reserpine (Serpalan, Serpasil, Serpatab), ritonavir (Norvir), terbinafine (Lamisil),and thioridazine (Mellaril), Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have a slow heart rate, heart failure, problems with blood circulation, or pheochromocytoma (a tumor that develops on a gland near the kidneys and may cause high blood pressure and fast heartbeat). Your doctor may tell you not to take Metoprolol.
tell your doctor if you have or have ever had asthma or other lung disease; heart or liver disease; diabetes; severe allergies; or an overactive thyroid gland (hyperthyroidism).
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking Metoprolol, call your doctor.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking Metoprolol.
you should know that Metoprolol may make you drowsy. Do not drive a car or operate machinery until you know how Metoprolol affects you.
remember that alcohol can add to the drowsiness caused by Metoprolol.
you should know that if you have allergic reactions to different substances, your reactions may be worse while you are using Metoprolol, and your allergic reactions may not respond to the usual doses of injectable epinephrine.
What special dietary instructions should I follow?
If your doctor prescribes a low-salt or low-sodium diet, follow these directions carefully.

What should I do if I forget a dose?
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

What side effects can Metoprolol cause?
Metoprolol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

dizziness or lightheadedness
tiredness
depression
upset stomach
dry mouth
stomach pain
vomiting
gas or bloating
heartburn
constipation
rash or itching
cold hands and feet
runny nose

Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately:

shortness of breath
wheezing
swelling of the hands, feet, ankles, or lower legs
unusual weight gain
fainting
rapid, pounding, or irregular heartbeat

Metoprolol may cause other side effects. Call your doctor if you have any unusual problems while taking Metoprolol.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/MedWatch/index.html] or by phone [1-800-332-1088].

What storage conditions are needed for Metoprolol?
Keep Metoprolol in the container it came in, tightly closed, and out of reach of children. Store Metoprolol at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

In case of emergency/overdose
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Symptoms of overdose may include:

dizziness
fainting
difficulty breathing or swallowing
swelling of the hands, feet, ankles, or lower legs

What other information should I know?
Keep all appointments with your doctor. Your blood pressure should be checked regularly to determine your response to Metoprolol. Your doctor may ask you to check your pulse (heart rate). Ask your pharmacist or doctor to teach you how to take your pulse. If your pulse is faster or slower than it should be, call your doctor.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand names
Lopressor®
Toprol XL®

Brand names of combination products
Lopressor® HCT