Treats high blood pressure, angina (chest pain), and heart failure. A lower blood pressure can reduce the risk of strokes and heart attacks. This medicine is a beta-blocker.
There may be other brand names for this medicine.
Hypertensolol, Lopressor, Toprol XL, Toprol-XL
When This Medicine Should Not Be Used
Do not use this medicine if you have had an allergic reaction to metoprolol or similar medicines (such as atenolol, propranolol, Bystolic®, Tenormin®). Do not use this medicine if you have certain blood circulation problems or heart problems. Talk with your doctor about what these problems are.
How to Use This Medicine
Tablet, Long Acting Tablet
- Your doctor will tell you how much of this medicine to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
- Take this medicine with a meal or right after a meal. Take this medicine the same way every day, at the same time.
- Carefully follow your doctor's instructions about any special diet.
- Swallow the tablet whole with a glass of water. Do not crush, break, or chew it.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you are also using digoxin (Digitek®, Lanoxin®), dipyridamole (Persantine®), medicine to treat depression (such as bupropion, clomipramine, desipramine, fluoxetine, fluvoxamine, paroxetine, sertraline, Paxil®, Wellbutrin®), medicine to treat mental illness (such as chlorpromazine, fluphenazine, haloperidol, thioridazine, Mellaril®), medicine for heart rhythm problems (such as propafenone, Rythmol®), medicine to treat HIV or AIDS (such as ritonavir, Norvir®), diphenhydramine (Benadryl®), quinidine (Quinidex®), hydroxychloroquine (Plaquenil®), or medicine to treat a fungus infection (such as terbinafine, Lamisil®).
- Make sure your doctor knows if you are also using another blood pressure medicine (such as clonidine (Catapres®), prazosin (Minipress®), reserpine, guanethidine (Ismelin®), hydralazine (Apresoline®), methyldopa, amlodipine, diltiazem, verapamil, Caduet®, Lotrel®), or an ergot medicine (such as ergotamine, Cafergot®, Ergomar®, Wigraine®).
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, blood vessel or circulation problems, diabetes, low blood pressure, lung disease (such as asthma), an overactive thyroid, diabetes, or an adrenal gland tumor (pheochromocytoma). Tell your doctor if you have a history of allergies.
- This medicine may worsen the symptoms of heart failure in some patients. Tell your doctor right away if you have chest pain, trouble breathing, uneven heartbeat, rapid weight gain, or swelling of the face, fingers, feet, or lower legs.
- Do not stop using this medicine suddenly without asking your doctor. You may need to slowly decrease your dose before stopping it completely.
- Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine several days before having surgery or medical tests.
- This medicine could lower your blood pressure too much and cause you to feel dizzy or lightheaded. Stand or sit up slowly if you are dizzy. This is more likely to happen when you begin to use the medicine or if you become dehydrated.
- This medicine may raise or lower your blood sugar, or it may cover up symptoms of very low blood sugar (hypoglycemia).If you have diabetes, report any changes in your blood sugar levels to your doctor.
- This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else until you know how this medicine affects you.
- Do not stop using this medicine without asking your doctor, even if you feel well. This medicine will not cure your high blood pressure, but it will help keep it in normal range. You may have to take blood pressure medicine for the rest of your life.
- Your doctor will need to check your progress at regular visits while you are using this medicine. Be sure to keep all appointments.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Fever, chills, cough, sore throat, and body aches
- Lightheadedness, dizziness, or fainting
- Rapid weight gain, swelling in your hands, ankles, or feet
- Slow, fast, pounding, or uneven heartbeat
- Trouble breathing, cold sweats, and bluish-colored skin
- Unusual bleeding or bruising
- Worsening chest pain
If you notice these less serious side effects, talk with your doctor:
- Mild dizziness or tiredness