Medications and Drugs

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Brand Names: Lopressor, Metoprolol Succinate ER, Toprol-XL

Generic Name: metoprolol (Pronunciation: me TOE pro lol)

• What is metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What are the possible side effects of metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What is the most important information I should know about metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What should I discuss with my healthcare provider before taking metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• How should I take metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What happens if I miss a dose (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What happens if I overdose (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What should I avoid while taking metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• What other drugs will affect metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?
• Where can I get more information?

What is metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?

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.

Metoprolol 100 mg-CAR

oblong, white, imprinted with 167

Metoprolol 100 mg-GG

round, white, imprinted with GG 415

Metoprolol 100 mg-MYL

round, blue, imprinted with M 47

Metoprolol 100 mg-TEV

round, blue, imprinted with 93 734

Metoprolol 100 mg-WAT

round, blue, imprinted with WATSON 463

Metoprolol 25 mg-MYL

round, white, imprinted with M 18

Metoprolol 50 mg-CAR

oblong, white, imprinted with 166

Metoprolol 50 mg-GG

round, white, imprinted with GG 414

Metoprolol 50 mg-MYL

round, pink, imprinted with M 32

Metoprolol 50 mg-TEV

round, pink, imprinted with 93 733

Metoprolol 50 mg-WAT

round, pink, imprinted with WATSON 462

Metoprolol Succinate 25mg Tablet

round, white, imprinted with 293

Toprol XL 100 mg

round, white, imprinted with AMS

Toprol XL 200 mg

elliptical, white, imprinted with A MY

Toprol XL 25 mg

oval, white, imprinted with A B

Toprol XL 50 mg

round, white, imprinted with AMO

What are the possible side effects of metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

• slow or uneven heartbeats;
• feeling light-headed, fainting;
• feeling short of breath, even with mild exertion;
• swelling of your ankles or feet;
• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
• depression; or
• cold feeling in your hands and feet.

Less serious side effects may include:

• vomiting;
• decreased sex drive, impotence, or difficulty having an orgasm;
• sleep problems (insomnia);
• tired feeling; or
• anxiety, nervousness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about metoprolol (Lopressor, Metoprolol Succinate ER, Toprol-XL)?

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 pheochromocytoma, circulation problems, congestive heart failure, asthma or other breathing problems, diabetes, low blood pressure, depression, liver or kidney disease, a thyroid disorder, or myasthenia gravis.

Metoprolol can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Avoid drinking alcohol, which could increase drowsiness and dizziness while you are taking metoprolol.

Do not stop taking metoprolol without first talking to your doctor. Stopping suddenly may make your condition worse.

If you need to have any type of surgery, you may need to temporarily stop using metoprolol. Be sure the surgeon knows 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.

Hypertension often has no symptoms, so you may not even feel that you have high blood pressure. Continue using this medicine as directed, even if you feel well. You may need to use blood pressure medication for the rest of your life.