Mirabegron is used to treat a condition called overactive bladder. Overactive bladder happens when you cannot control your bladder muscle. When the muscle contracts (narrows) too often or cannot be controlled, you get symptoms of overactive bladder such as:

• not being able to control when to empty your bladder, where you get a strong need to urinate with leaking or wetting incidence (urinary incontinence)
• a strong need to urinate right away (urgency)
• urinating often (frequency)

• Do not stop taking your medication without checking with your healthcare professional.
• This medication is usually taken once a day.
• You may take this medication with or without food.
• Do not chew or crush the tablet as this can affect the release of medication into your body.

If you forget to take a dose, take it as soon as you remember. Then take your next dose at the usual time. Do not take two doses to make up for the missed dose.

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

• 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 in 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 and seek medical attention immediately if your blood pressure is at 180/110mmHg.
• 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.

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.

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children. 

Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.