| Overactive Bladder

Botox vs Myrbetriq

Side-by-side clinical, coverage, and cost comparison for overactive bladder.

Deep comparison between: Botox vs Myrbetriq with Prescriber.AI

AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.

Safety signalsMyrbetriq has a higher rate of injection site reactions vs Botox based on FDA-approved prescribing information

Coverage gaps3 major payers require step therapy for Myrbetriq but not Botox, including UnitedHealthcare

Category

Botox

Myrbetriq

At A Glance

RouteIM injection

FrequencyEvery 12 weeks

ClassBotulinum toxin type A

RouteOral

FrequencyOnce daily

ClassBeta-3 adrenergic agonist

Indications

Overactive Bladder
Migraine Disorders
Benign essential blepharospasm
Strabismus, Comitant

Overactive Bladder
Neurogenic detrusor overactivity

Dosing

Overactive Bladder 100 Units injected as 0.5 mL (5 Units) across 20 sites into the detrusor via cystoscope; repeat no sooner than 12 weeks.

Detrusor Overactivity associated with a Neurologic Condition 200 Units injected as 1 mL (~6.7 Units) across 30 sites into the detrusor via cystoscope; repeat no sooner than 12 weeks.

Pediatric Detrusor Overactivity associated with a Neurologic Condition 200 Units (>=34 kg) or 6 Units/kg (<34 kg) via intradetrusor injection across 20 sites; repeat no sooner than 12 weeks.

Migraine Disorders 155 Units IM as 0.1 mL (5 Units) per site divided across 7 head/neck muscle areas; re-treat every 12 weeks.

Adult Upper Limb Spasticity 75-400 Units IM divided among affected muscles; re-treat no sooner than 12 weeks.

Adult Lower Limb Spasticity 300-400 Units IM divided across 5 muscles (gastrocnemius, soleus, tibialis posterior, flexor hallucis longus, flexor digitorum longus); re-treat no sooner than 12 weeks.

Pediatric Upper Limb Spasticity 3-6 Units/kg IM (maximum 200 Units) divided among affected muscles; re-treat no sooner than 12 weeks.

Pediatric Lower Limb Spasticity 4-8 Units/kg IM (maximum 300 Units) divided among affected muscles; re-treat no sooner than 12 weeks.

Cervical Dystonia Dose individualized based on head/neck position, pain, and muscle hypertrophy; mean dose approximately 236 Units IM divided among affected muscles.

Primary Axillary Hyperhidrosis 50 Units per axilla injected intradermally across 10-15 sites approximately 1-2 cm apart.

Benign essential blepharospasm 1.25-2.5 Units injected into 3 sites per affected eye; re-treat approximately every 3 months.

Strabismus, Comitant 1.25-5 Units per muscle via electromyographic-guided injection, dosed based on deviation size in prism diopters; re-examine 7-14 days after each injection.

Overactive Bladder 25 mg orally once daily (starting dose), alone or in combination with solifenacin succinate 5 mg once daily; may increase to 50 mg once daily after 4-8 weeks.

Neurogenic detrusor overactivity Pediatric patients >=3 years: weight-based once-daily dosing; patients <35 kg use MYRBETRIQ Granules (24-64 mg/day depending on weight); patients >=35 kg use MYRBETRIQ 25 mg once daily (or MYRBETRIQ Granules 6 mL/48 mg once daily), increasing to maximum 50 mg (or 10 mL/80 mg) after 4-8 weeks.

Contraindications

Hypersensitivity to any botulinum toxin product or to any component of the formulation
Infection at the proposed injection site(s)
Urinary tract infection at time of intradetrusor injection
Urinary retention or post-void residual urine volume >200 mL in patients not routinely performing clean intermittent self-catheterization (for intradetrusor injection)

Known hypersensitivity to mirabegron or any inactive ingredient of the tablet or oral suspension

Drug Interactions

377View drug interactions

1298View drug interactions

Adverse Reactions

Most common (>=2%) Urinary tract infection, dysuria, urinary retention, neck pain, headache, muscular weakness, eyelid ptosis, injection site pain, dysphagia, upper respiratory infection

Serious Spread of toxin effects, dysphagia and breathing difficulties, hypersensitivity reactions, autonomic dysreflexia, corneal exposure and ulceration, retrobulbar hemorrhage

Postmarketing Abdominal pain, alopecia, brachial plexopathy, peripheral neuropathy, arrhythmia, myocardial infarction, death associated with dysphagia and pneumonia, new onset or recurrent seizures

Most common (>2%) Hypertension, nasopharyngitis, urinary tract infection, headache

Serious Urinary retention, angioedema, atrial fibrillation

Postmarketing Atrial fibrillation, nausea, constipation, diarrhea, dizziness, headache, angioedema of the face/lips/tongue/larynx, urinary retention, pruritus, confusion, hallucinations, insomnia, anxiety

Pharmacology

Botulinum toxin type A that blocks neuromuscular transmission by inhibiting acetylcholine release at motor and autonomic nerve terminals through cleavage of SNAP-25, producing localized, reversible chemical denervation of muscle, sweat glands, or the detrusor depending on injection site.

Mirabegron is a beta-3 adrenergic receptor agonist that relaxes detrusor smooth muscle during the bladder storage phase by activating beta-3 AR, thereby increasing bladder capacity.

View Full FDA Information

View full FDA information

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Most Common Insurance

Anthem BCBS

Botox