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Mirabegron

Medication beta-3 agonist other
Aka: Betmiga, Myrbetriq
Brands seen in Singapore: Betmiga
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Prescribed for overactive bladder
When to take
HealthHub: usually once a day, with or without food
Take with
Water · tablet swallowed whole, not chewed or crushed
Pros & cons
Pros
  • HealthHub: for a bladder you cannot control (oab)
  • FDA: 25 mg once daily, maximum 50 mg once daily
  • FDA: taken with or without food in adults
Cons
  • HealthHub: can raise blood pressure and heart rate
  • FDA: not recommended if bp is severely uncontrolled
  • FDA: angioedema of face, lips or tongue reported
Sources
  1. HSA — Listing of Registered Therapeutic Products (data.gov.sg open dataset, 5,511 rows; cached at /tmp/hsa_all.json and filtered locally, not re-fetched) · read 2026-08-27
    what it says
    “Both registered mirabegron products read Forensicclassification 'Prescription Only' — SIN14622P BETMIGA PROLONGED-RELEASE TABLETS 25MG and SIN14623P BETMIGA PROLONGED-RELEASE TABLETS 50MG (ATC G04BD12, Astellas)”
  2. HealthHub (Pharmaceutical Society of Singapore) — Mirabegron: what is this medication for · read 2026-08-27
    what it says
    “Mirabegron is used to treat a condition called overactive bladder. Overactive bladder happens when you cannot control your bladder muscle … you get a strong need to urinate with leaking”
  3. HealthHub — Mirabegron: how should I take or use this medication · read 2026-08-27
    what it says
    “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”
  4. HealthHub — Mirabegron: what precautions should I take · read 2026-08-27
    what it says
    “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 … severe uncontrolled blood pressure”
  5. HealthHub — Mirabegron: common side effects · read 2026-08-27
    what it says
    “Increased heart rate (tachycardia) … Increased in blood pressure … stop mirabegron treatment and seek medical attention immediately if your blood pressure is at 180/110mmHg … Nausea … Urinary tract infection”
  6. HealthHub — Mirabegron: what food or medication should I avoid · read 2026-08-27
    what it says
    “Avoid drinking alcohol as it may increase the risk of dizziness, light-headedness or drowsiness.”
  7. US FDA label for MYRBETRIQ (mirabegron extended-release tablets), section 2 Dosage and Administration, via openFDA (effective 2024-08-01) · read 2026-08-27
    what it says
    “The recommended starting dosage of MYRBETRIQ is 25 mg orally once daily. If needed, increase to the maximum dosage of MYRBETRIQ 50 mg orally once daily after 4 to 8 weeks … Take with or without food”
  8. US FDA label for MYRBETRIQ, section 5 Warnings and Precautions, via openFDA · read 2026-08-27
    what it says
    “not recommended for use in patients with severe uncontrolled hypertension … urinary retention has been reported to occur in patients with bladder outlet obstruction and in patients taking muscarinic antagonist medications … Angioedema of the face, lips, tongue”
  9. US FDA label for MYRBETRIQ, section 7 Drug Interactions, via openFDA · read 2026-08-27
    what it says
    “Since mirabegron is a moderate CYP2D6 inhibitor … 100 mg mirabegron increased mean digoxin Cmax from 1.01 to 1.3 ng/mL (29%) and AUC … (27%) … the lowest dose for digoxin should initially be considered”
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Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.