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Metoprolol Succinate

Metoprolol Succinate

What Is Metoprolol (Lopressor)?

Metoprolol is the generic form of the brand-name drug Lopressor, prescribed to treat high blood pressure and prevent angina (chest pain).

Metoprolol is a type of medication called a beta blocker. It works by relaxing blood vessels and slowing heart rate, which improves blood flow and lowers blood pressure.

Metoprolol can also improve the likelihood of survival after a heart attack. Doctors prescribe the long-acting form of the drug (Toprol XL) to treat heart failure.

Other uses

This section includes uses of this drug that are not mentioned on the labels for licensed professionals in the US, but which your healthcare professional may indicate to you. Use this medication to treat any of the conditions listed in this section only if your health care professional has told you.This medication may also be used to treat irregular heartbeat, to prevent migraines, and to improve the chances of survival after a acute heart attack

How to use

See also the Warning section. Take this medication orally, with a meal or right after eating, as directed by your doctor, usually once a day. Dosage will depend on your medical condition and response to treatment. Do not crush or chew the extended-release tablets. Doing so can release all of the drug in a single pulse and increase your risk of side effects. Also, do not split the pills unless they have a one-line mark and have been instructed by your doctor or pharmacist.

Side effects

  • fatigue
  • tiredness
  • heart rate low (bradycardia)
  • hypotension
  • lightheadedness
  • brain fog


Store this product at room temperature, protected from light and moisture. Do not keep it in the bathroom. Keep all medications out of the reach of children and pets. Do not flush medications down the toilet or in the drain unless instructed to do so. Properly dispose of this product when the expiration date is reached or when you no longer need it. Consult your pharmacist or local waste disposal company for more information on how to safely dispose of your product.

Metoprolol and Alcohol

You should avoid drinking alcohol while taking metoprolol.

Alcohol can make the side effect of drowsiness worse.

Other Metoprolol Interactions

It's important to know that metoprolol could make you feel sleepy. Don't drive or operate machinery until you know how the drug affects you.

Your doctor may also tell you to stick to a low-sodium diet. Be sure to follow these instructions carefully