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Mirabegron

Brand names: Myrbetriq

Mirabegron relaxes the bladder muscle to ease urgency, frequent peeing, and leaks from an overactive bladder.

Brand namesMyrbetriq
Type of medicineBladder relaxant (beta-3 agonist)
Prescription?Prescription
ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.

Overview

It doesn't cause the dry mouth and confusion of older bladder medicines.

What it's used for

  • Overactive bladder
  • Bladder overactivity from nerve problems in children

How to take it

  • Swallow tablets whole, with or without food.
  • It may take 4 to 8 weeks to see the full effect.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

  • Higher blood pressure
  • Headache
  • Urinary tract infections
  • Stuffy nose
Call 911Swelling of the face, lips, or throat
Call your provider todayCan't pee
Call your provider todayVery high blood pressure readings

Warnings

  • Your provider will check blood pressure.

Other medicines, foods, and alcohol

  • It raises levels of metoprolol, desipramine, and digoxin.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Talk with your provider.

Missed doses, overdose, and storage

If you miss a dose

Take it as soon as you remember, unless it's almost time for your next dose. Then skip the missed dose. Don't take two doses at once.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

Sources

Last updated 2026-11-13.