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Myrbetriq

Generic Name: mirabegron (MIR a BEG ron)
Brand Name: Myrbetriq

Medically reviewed on September 11, 2017

What is mirabegron?

Mirabegron reduces muscle spasms of the bladder and urinary tract.

Mirabegron is used to treat overactive bladder with symptoms of frequent or urgent urination and urinary incontinence.

Mirabegron may also be used for purposes not listed in this medication guide.

Important Information

You should not use mirabegron if have severe kidney disease, severe liver disease, or severe uncontrolled hypertension (high blood pressure).

Before taking this medicine

You should not use mirabegron if you are allergic to it, or if you have:

  • severe kidney disease;

  • severe liver disease; or

  • severe uncontrolled hypertension (high blood pressure).

To make sure mirabegron is safe for you, tell your doctor if you have:

  • kidney disease;

  • liver disease;

  • high blood pressure;

  • urination problems; or

  • trouble emptying your bladder (very little urine or a weak stream of urine).

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether mirabegron passes into breast milk or if it could harm a nursing baby. You should not breast-feed while using this medicine.

Mirabegron is not approved for use by anyone younger than 18 years old.

How should I take mirabegron?

Mirabegron is usually taken once per day. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

You may take mirabegron with or without food.

Take this medicine with a full glass of water.

Do not crush, chew, or break an extended-release tablet. Swallow it whole.

Your blood pressure will need to be checked often.

It may take up to 8 weeks before your symptoms improve. Keep using the medication as directed and tell your doctor if your symptoms do not improve.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Skip the missed dose and wait until your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking mirabegron?

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

Mirabegron side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using mirabegron and call your doctor at once if you have:

  • fast or pounding heartbeats;

  • pain or burning when you urinate;

  • painful or difficult urination; or

  • dangerously high blood pressure--severe headache, blurred vision, pounding in your neck or ears, nosebleed, anxiety, confusion, severe chest pain, shortness of breath, irregular heartbeats.

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

What other drugs will affect mirabegron?

Tell your doctor about all your current medicines and any you start or stop using, especially:

This list is not complete. Other drugs may interact with mirabegron, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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