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Fesoterodine

Published: July 26, 2026Updated: August 24, 2026

Fesoterodine is an antimuscarinic medication used to treat overactive bladder (OAB), a condition characterized by a sudden urge to urinate, frequent urination, and involuntary urine leakage (urge incontinence). It works by relaxing the bladder muscle, reducing unwanted contractions, and increasing bladder capacity to help control urination.

Quick summary

Fesoterodine is an antimuscarinic medication that treats overactive bladder by relaxing the bladder muscle and reducing urinary urgency and incontinence.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

ATC
G04BD11
RxNorm
797195
Generic
Fesoterodine
Class
atc-g04
Brands
Toviaz
Availability
rx
Lactation
unknown
Routes
oral
Forms
tablet
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Dosage and administration

adult (standard)tablet
Usual dose
4mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
4mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
4mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose of 40mg (5 times maximum daily dose) may cause serious anticholinergic toxicity
Chronic overdose: Prolonged use above 8mg daily may lead to cumulative anticholinergic effects including cognitive impairment
Immediate actions
Gastric lavage if within 1-2 hours, activated charcoal, supportive care, monitor cardiac and respiratory function
Antidote
No specific antidote available(Treatment is supportive and symptomatic)
Poison Control: 1-800-222-1222

Special Populations

9 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

use only if benefits outweigh potential risks to fetus

Monitor

regular prenatal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

second trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

discontinue if pregnancy confirmed unless clearly needed

Monitor

routine prenatal care

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use near delivery due to potential neonatal effects

Monitor

fetal monitoring and assessment at delivery

Use with caution and monitor for adverse effects.

⚠

lactation

breastfeeding
caution
FDA Category
C
Dose Adjustment

avoid

Key Recommendations

not recommended during breastfeeding; discontinue drug or pump and discard breast milk

Monitor

monitor infant for anticholinergic effects

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly 65 years
caution
FDA Category
N
Dose Adjustment

start with lowest dose

Key Recommendations

use with caution due to increased sensitivity; monitor for cognitive effects and anticholinergic side effects

Monitor

regular assessment of cognitive function and constipation

Use with caution and monitor for adverse effects.

✗

pediatric_age

children under 12 years
unsafe
FDA Category
C
Dose Adjustment

not recommended

Key Recommendations

safety and efficacy not established in pediatric patients

Monitor

not applicable

Use of this medication in this population requires careful consideration of risks and benefits.

⚠

renal_impairment

moderate renal impairment
caution
FDA Category
C
Dose Adjustment

reduce dose to 4mg daily

Key Recommendations

maximum dose 4mg daily in moderate renal impairment; avoid in severe impairment

Monitor

monitor renal function periodically

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

moderate hepatic impairment
caution
FDA Category
C
Dose Adjustment

use with caution

Key Recommendations

use with caution in moderate hepatic impairment; not recommended in severe hepatic impairment

Monitor

monitor liver function tests

Use with caution and monitor for adverse effects.

⚠

alcohol_users

alcohol consumption
caution
FDA Category
C
Dose Adjustment

avoid excessive alcohol

Key Recommendations

limit alcohol consumption; may enhance sedative and anticholinergic effects

Monitor

monitor for increased sedation and cognitive impairment

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2008

FDA approval date for Fesoterodine (Toviaz)

drug_classWHO
2023

Drug class

Value:Antimuscarinic

ATC classification: G04BD11 - Genitourinary antispasmodics

usageMedical guidelines
2023

Common uses

Value:Overactive bladder treatment

Treatment of urge urinary incontinence, urgency, and frequency

Treatment of overactive bladder (OAB) with symptoms including urinary urgency, increased frequency of urination, and urge incontinence (involuntary leakage associated with a strong urge to urinate).

Fesoterodine is a prodrug that is metabolized in the body to its active form, 5-hydroxymethyl tolterodine. It works by blocking muscarinic (M3) receptors in the smooth muscle of the bladder detrusor, inhibiting involuntary contractions and increasing bladder capacity.

Common side effects include dry mouth, constipation, and blurred vision. It should be used with caution in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma. Not recommended during pregnancy or breastfeeding. Should be swallowed whole (extended-release formulation) and may interact with other anticholinergic medications.

Contraindications

Conditions and patient states where this medication should be avoided or used with caution.

Do not use (1)

ABSOLUTEhypersensitivity

Known allergy to this medication or its components

Use caution (1)

RELATIVEpregnancy

Consult healthcare provider for benefits vs risks assessment

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 24, 2026. · Read our editorial policy