Last reviewed · How we verify

daytime dosing of mirabegron

Far Eastern Memorial Hospital · FDA-approved active Small molecule

Mirabegron is a beta-3 adrenergic receptor agonist that relaxes the detrusor muscle in the bladder to increase urine storage capacity.

Mirabegron is a beta-3 adrenergic receptor agonist that relaxes the detrusor muscle in the bladder to increase urine storage capacity. Used for Overactive bladder with symptoms of urge incontinence, urgency, and urinary frequency.

At a glance

Generic namedaytime dosing of mirabegron
SponsorFar Eastern Memorial Hospital
Drug classBeta-3 adrenergic receptor agonist
TargetBeta-3 adrenergic receptor (ADRB3)
ModalitySmall molecule
Therapeutic areaUrology
PhaseFDA-approved

Mechanism of action

Mirabegron activates beta-3 adrenergic receptors on the smooth muscle of the bladder detrusor, causing relaxation and increased bladder capacity during the storage phase of the micturition cycle. Unlike anticholinergic agents, it does not block muscarinic receptors, resulting in a different side effect profile. This mechanism allows increased urine storage without affecting bladder emptying.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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