Health Library

What is Metoprolol?


Metoprolol (Lopressor, Toprol XL) is in a class of drugs known as beta-blockers.

It is used to treat high blood pressure, fast or irregular heartbeat, heart failure, chest pain, migraine headache and tremors.

This medication is available as an injection, tablet, or your pharmacist may be able to make a liquid.

Special Instructions

  • Give this medicine only as told by the doctor, and do not stop unless told to stop by your child's doctor.
  • Ask the doctor or pharmacist before giving any over-the-counter (OTC) drugs.
  • Make sure the doctor knows if your child has asthma or diabetes before giving this medicine.
  • Take the same time each day with food or right after meals.
  • Do not chew, break or crush the extended release tablets.
  • Do not use after the expiration date on the bottle / package.
  • If too much medicine is taken by accident, call the Drug and Poison Information Center (DPIC), 513-636-5111 or 1-800-222-1222, or call your child's doctor right away.
  • Keep this medication out of the reach of children.

If Your Child Misses a Dose

For questions about your child's dosing schedule and/or missed doses, contact the healthcare provider who prescribed the medication.

Possible Side Effects of Medication

  • Feeling dizzy or tired
  • Feeling confused
  • Cold hands or feet
  • Sleep trouble
  • Slow heart rate
  • Low blood pressure

Call Your Child's Doctor If:

Call your child's doctor right away if your child has:

  • Trouble breathing
  • A severe headache
  • Weight gain
  • Skin rash

Last Updated 05/2022

Reviewed By Chris Stang