Therapeutic Categories
Beta Blocker, Beta1 Selective
Reasons not to take this medicine
If you have an allergy to another beta-blocking agent, metoprolol, or any other part of the medicine.
If you have any of the following conditions: Weakened heart (congestive heart failure) whose symptoms are poorly controlled, slow heart rate (bradycardia) without a working pacemaker.
If you are more than 12 weeks pregnant.
What is this medicine used for?
This medicine is used to treat high blood pressure and/or chest pain from the heart. This is called angina.
It is used after a heart attack to prevent future heart attacks and lengthen life.
It prevents unusual heartbeats (arrhythmias) and/or slows the heart rate (pulse) in patients with a rapid one.
Other treatments include prevention of migraine headaches, aggressive behavior, heart failure, antipsychotic-induced restlessness, essential tremor, the prevention of rebleeding from esophageal varices in cirrhosis, and situational/performance anxiety.
How does it work?
Metoprolol blocks chemicals, such as adrenaline (epinephrine), and prevents them from increasing heart rate, blood pressure, and oxygen use. Metoprolol slows the body down a bit.
How is it best taken?
Take with food.
If you are taking this medicine for high blood pressure, follow diet plan (low salt) as recommended by healthcare provider.
Do not take antacids or calcium supplements less than 2 hours before or 6 hours after this medicine.
Tablet can be crushed and mixed with food or liquid.
Swallow sustained-release tablet whole. Do not chew, break, or crush.
Do not suddenly stop using this medicine if you have been taking it for a long time. Medicine should be slowly decreased.
What do I do if I miss a dose?
Take a missed dose as soon as possible.
If it is almost time for the next dose, skip the missed one. Return to your regular schedule.
Do not take a double dose or extra doses.
Do not change dose or stop taking medicine without talking with healthcare provider. This could be very dangerous.
What are the precautions when taking this medicine?
Check medicines with healthcare provider, especially with amiodarone, diltiazem, and verapamil.
Wear disease medical alert identification for heart disease.
It is dangerous to run out of this medication. Get it refilled today!
Avoid alcohol (includes wine, beer, and liquor) and other medicines and herbs that slow your actions and reactions. This includes sedatives, tranquilizers, mood stabilizers, or pain medicine. Talk with healthcare provider.
Use caution if you have a weakened heart. Can worsen symptoms. Talk with healthcare provider.
Use caution if you have lung disease. This includes asthma, chronic obstructive pulmonary disease, or if you are using an inhaler like albuterol or ipratropium. This medicine can cause wheezing or spasm in the lung.
Use caution if you are diabetic and have low blood sugars. Talk with healthcare provider. This medicine hides signs of low blood sugar except sweating.
Do not use over-the-counter products that increase blood pressure. These include cough or cold remedies, diet pills, stimulants, ibuprofen or like products, and certain herbs or supplements. Talk with healthcare provider.
Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved.
Do not use in pregnancy and do not get pregnant. Use birth control that you can trust while taking this medicine.
Tell healthcare provider if you are breast-feeding.
What are the common side effects of this medicine?
Feeling sleepy and/or lightheaded. Use caution when driving, other other tasks or activities.
Dizziness is common. Rise slowly over several minutes from sitting or lying position. Be careful climbing stairs.
Change in sexual ability or desire. This can return to normal after medicine is stopped. Talk with healthcare provider about other medicines without this side effect.
Slow heartbeat (pulse) and/or low blood pressure (lightheadedness, dizziness, weakness, and feeling tired).
What should I monitor?
Watch for swelling of legs or belly, shortness of breath, weight gain, exercise tolerance. If any of these worsen, talk with healthcare provider.
Report a 3-5 pound weight gain if you have heart failure.
Check blood pressure regularly.
Follow diet plan and exercise program as recommended by healthcare provider.
Reasons to call healthcare provider immediately
Signs of a life-threatening reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; fits; swelling of face, lips, tongue, or throat.
Too tired or sleepy.
Passing out, fainting, dizziness, or lightheadedness.
Chest pains, fast heartbeats, shortness of breath, or decreased ability to walk.
Any rash.
How should I store this medicine?
Store in a tight container at room temperature.
General statements
Do not share your medicine with others and do not take anyone else's medicine.
Keep all medicine out of the reach of children and pets.
Keep a list of all your medicines (prescription, herbal/supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, pharmacist, physician assistant).
Talk with healthcare provider before starting any new medicine, including over-the-counter or natural products (herbs, vitamins).
Brand Names
Lopressor®; Toprol XL®
Foreign Brand Names
Apo-Metoprolol® (Type L) (Canada); Betaloc® (Canada); Betaloc Durules® (Canada); Kenaprol (Mexico); Lopresor (Mexico); Novo-Metoprolol® (Canada); Nu-Metop (Canada); Proken M (Mexico); Prolaken (Mexico); Ritmolol (Mexico); Seloken (Mexico); Selopres (Mexico)
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