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Drug Class: Commonly Known As: Category:
Betmiga Adult

Mirabegron - Side Effects, Precautions, and Contraindications

What side effects can Mirabegron cause?

  • ​Increased heart rate (tachycardia)
  • Headaches, especially sudden throbbing like headaches
    • Inform your doctor if the headache becomes unbearable as these may be signs of very high blood pressure
  • Increased blood pressure
    • Monitor your blood pressure regularly. Inform your doctor if you notice an increasing trend of blood pressure readings or when your blood pressure is at 160/90mmHg. You have to stop mirabegron treatment immediately if your blood pressure is at 180/110mmHg and seek immediate medical attention.
  • Nausea
    • Take the medication after food, eat small but frequent meals. Avoid fatty or spicy food.
  • Diarrhoea
  • Constipation
    • Drink more water (if you do not have any fluid restrictions), eat more high-fibre foods and exercise regularly
  • Urinary tract infection
  • Dizziness

The symptoms of a drug allergy include one or more of the following:

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

Before taking Mirabegron , what precautions must I follow?

​Inform your healthcare professional if:

  • You are allergic to this medication or any of the other ingredients of this medication
  • You are pregnant, planning to become pregnant, or breastfeeding
  • You are not able to empty your bladder (urinary retention) 
  • You have liver, kidney or heart problems
  • You have severe uncontrolled blood pressure

What food or medicine must I avoid when I take Mirabegron ?

  • ​Avoid drinking alcohol as it may increase the risk of dizziness, light-headedness or drowsiness.
  • Inform your healthcare professional if you are taking or intend to take any other medication, supplements, traditional medications or herbal remedies.

Mirabegron - Additional Information

  • Updated on 9/30/2019 12:00:00 AM
  • Article contributed by PSS National Medication Information Workgroup PSS National Medication Information Workgroup
The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth


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