Metoprolol can help reduce your symptoms if you have too much thyroid hormone in your body thyrotoxicosis. You'll usually take it together with medicines to treat an overactive thyroid. This medicine comes as tablets and is only available on prescription.
It's also given by injection, but this is usually done in hospital. Take our survey. It is not suitable for everyone. To make sure it's safe for you, tell your doctor before starting metoprolol if you have:.
Metoprolol comes as 2 different types of tablet: standard release and slow release. Your doctor may advise you to take your first dose before bedtime because it could make you feel dizzy. If you do not feel dizzy after the first dose, take metoprolol in the morning. If you have metoprolol more than once a day, try to space the doses evenly throughout the day. Take metoprolol even if you feel well, as you will still be getting the benefits of the medicine.
How much you take depends on why you need metoprolol and the type of tablet you're taking:. You can take metoprolol with or without food, but it's best to do the same each day.
Some brands have a score line to help you break the tablet in half and make it easier to swallow. If you miss a dose, take your metoprolol as soon as you remember, unless it's nearly time for your next dose. In this case, just leave out the missed dose and take your next dose as normal. Never take 2 doses at the same time. Never take an extra dose to make up for a forgotten one. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine.
Taking too much metoprolol can slow down your heart rate and make it difficult to breathe. It can also cause dizziness and trembling. The amount of metoprolol that can lead to an overdose varies from person to person. If you need to go to hospital, do not drive yourself — get someone else to drive you or call for an ambulance. Take the metoprolol packet or leaflet inside it, plus any remaining medicine, with you. Like all medicines, metoprolol can cause side effects, but many people have no side effects or only minor ones.
These common side effects happen in more than 1 in people. They're usually mild and short-lived. Talk to your doctor or pharmacist if the side effects bother you or last more than a few days:.
It's rare, but some people have serious side effects when taking metoprolol. In rare cases, metoprolol may cause a serious allergic reaction anaphylaxis. These are not all the side effects of metoprolol. For a full list, see the leaflet inside your medicine packet.
If you're trying to get pregnant or are already pregnant, talk to your doctor about the benefits and possible harms of taking metoprolol. Your doctor may recommend another medicine, such as labetalol. It's similar to metoprolol and is often prescribed for high blood pressure in pregnancy.
This is because only a small amount gets into breast milk, and it's not enough to cause any problems to your baby. But speak to your doctor before taking metoprolol if your baby is premature or has kidney problems. There are some medicines that may interfere with the way metoprolol works. There's very little information about taking herbal remedies and supplements with metoprolol. Tell your doctor or pharmacist if you're taking any other medicines, including herbal medicines, vitamins or supplements.
Like other beta blockers, metoprolol works by changing the way your body responds to some nerve impulses, especially in the heart. It slows down your heart rate and makes it easier for your heart to pump blood around your body. Metoprolol starts to work after about 2 hours, but it can take up to 1 week to fully take effect. You may not feel any different when you take metoprolol, but this doesn't mean it's not working. If you're bothered by side effects, your doctor may be able to prescribe a different medicine for your heart problems.
If you stop taking metoprolol, it will take 1 day for it to be completely out of your body. Metoprolol works as well as other beta blockers for reducing blood pressure , but is less likely to cause side effects. That's because metoprolol works mainly on the heart. Other beta blockers, such as propranolol, work on the heart but affect other parts of the body as well. There are lots of other medicines to lower blood pressure and treat chest pain that work in a different way from beta blockers.
Beta blockers aren't usually the first choice of treatment for high blood pressure. Sometimes you may have to try other blood pressure-lowering medicines if you get side effects. Tell your doctor you're taking metoprolol if you're going to be put to sleep using general anaesthetic or have any kind of major operation. Your doctor may advise you to stop taking metoprolol 24 hours before surgery. Metoprolol tartrate is an immediate-release version of metoprolol.
Both forms of metoprolol — metoprolol tartrate Lopressor and metoprolol succinate Toprol-XL — are used to:. However, metoprolol tartrate is also used to treat and prevent heart attacks , while metoprolol succinate is also used to treat heart failure. Metoprolol may be used as part of a combination therapy.
That means you may have to take it with hydrochlorothiazide or chlorthalidone. Both versions of metoprolol belong to a class of drugs called beta-blockers. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions. Blood pressure is often raised because blood vessels are tightened. Beta-blockers work by preventing norepinephrine adrenalin from acting on beta receptors in blood vessels and in the heart.
This causes blood vessels to relax. This in turn helps decrease blood pressure and reduce chest pain. If these effects are mild, they may go away within a few days or a couple of weeks.
Call your doctor right away if you have serious side effects. Serious side effects and their symptoms can include the following:. Metoprolol oral tablet can interact with other medications, vitamins , or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well. To help avoid interactions, your doctor should manage all of your medications carefully. Taking metoprolol with reserpine and monoamine oxidase inhibitors MAOIs may increase or add to the effects of metoprolol.
They may also increase lightheadedness or slow your heart rate more. MAOIs can continue to interact with metoprolol for up to 14 days after taking them. Examples of MAOIs include:.
Taking heart rhythm drugs with metoprolol can slow down your heart rate too much. Examples of these drugs include:. Like metoprolol, these drugs are used to treat high blood pressure and several other heart problems. Combined with metoprolol, calcium channel blockers may slow your heart rate even more.
Doctors sometimes use this combination under close supervision. Drugs used to treat depression and other mood disturbances are processed in your body by the same systems as metoprolol. Using these drugs with metoprolol could increase the levels of metoprolol in your body. Alpha-blockers also lower blood pressure. They may decrease blood pressure too much when combined with metoprolol.
Stopping the drug suddenly while also taking metoprolol can cause a big jump in blood pressure. Ergot alkaloids, such as dihydroergotamine, narrow blood vessels to treat headaches. If you take them at the same time as metoprolol, they may cause dangerous narrowing of blood vessels.
Dipyridamole is used for heart testing. All possible dosages and forms may not be included here. Your dosage, form, and how often you take the drug will depend on:. Your body may process this drug more slowly. Your doctor may start you on a lowered dosage so that too much of this drug does not build up in your body.
The regular tablet contains tartrate, while extended-release contains succinate. Both metoprolol tartrate brand name Lopressor and metoprolol succinate brand name Toprol-XL treat high blood pressure and chest pain.
However, providers only use metoprolol tartrate in the first 24 hours after a heart attack UpToDate, n. Regardless of the type of metoprolol, the dose varies, so it is imperative to take the medication exactly as prescribed by your healthcare provider. The exact dose largely depends on:. If you currently have any of the following conditions , your healthcare provider may consider starting you on a lower dose or alternative medication UpToDate, n.
Also important to note, both forms of metoprolol share similar drug interactions. If you are taking any of the medications listed below, there could be a chance that taking combining the two will lead to an adverse reaction DailyMed, Your healthcare provider will work with you to determine the best metoprolol dose for you. The doses listed below are only suggested ranges.
When left untreated, high blood pressure can cause serious health complications and increase the risk of heart disease, stroke, and even death. The usual dosage range of the immediate-release tablets metoprolol tartrate is mg to mg orally in two divided doses per day. Extended-release tablets metoprolol succinate dosages usually range from 50 mg to mg once daily UpToDate, n.
Angina pectoris refers to chest pain that occurs as a symptom of coronary heart disease or coronary artery disease. Similar to hypertension, metoprolol succinate and metoprolol tartrate are both suitable options for treating angina pectoris. The dosages range from 50 mg to mg twice daily for metoprolol tartrate and to mg per day for metoprolol succinate UpToDate, n. Also known as a heart attack, a myocardial infarction occurs when the blood cannot properly flow to the heart muscle.
Early treatment for an acute myocardial infarction may include 5 mg IV of metoprolol tartrate every 5 minutes as tolerated for three doses. From there, oral metoprolol tartrate Once you are stable and can leave the hospital, you may be given metoprolol succinate pills, 25 mg to 50 mg daily UpToDate, n.
In stable patients, metoprolol succinate tablets may be prescribed in
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