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Benztropine

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

Benztropine is an anticholinergic medication primarily used to treat Parkinson's disease and manage movement disorders caused by certain psychiatric medications. It helps restore the balance of chemicals in the brain that control movement and coordination. This medication is typically prescribed when patients experience stiffness, tremors, or involuntary movements.

Quick summary

Benztropine is an anticholinergic drug used to treat Parkinson's disease symptoms and medication-induced movement disorders.

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

Key facts at a glance

ATC
N04AC01
RxNorm
1424
Generic
Benztropine
Class
atc-n04
Brands
—
Availability
rx
Lactation
unknown
Routes
oral
Forms
injection, 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
500mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
250mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
400mg 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 approximately 10mg or more may cause serious toxicity in adults
Chronic overdose: Long-term use can lead to accumulation and chronic anticholinergic toxicity
Immediate actions
Gastric lavage if within 1-2 hours, activated charcoal, supportive care, airway management
Antidote
No specific antidote exists; physostigmine may be considered for severe delirium in controlled settings(Supportive care is mainstay; physostigmine is controversial and has risks)
Poison Control: 1-800-222-1222

Special Populations

11 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during first trimester unless benefits outweigh risks

Monitor

regular fetal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

second trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

use only if clearly needed for maternal condition

Monitor

fetal growth monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid close to delivery due to potential effects on newborn

Monitor

neonatal assessment for anticholinergic effects

Use with caution and monitor for adverse effects.

✗

lactation

breastfeeding
unsafe
FDA Category
C
Dose Adjustment

discontinue breastfeeding or avoid drug

Key Recommendations

benztropine crosses into breast milk; not recommended during breastfeeding

Monitor

monitor infant for anticholinergic symptoms

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

⚠

geriatric

elderly
caution
FDA Category
N
Dose Adjustment

reduce dose

Key Recommendations

start with lowest dose; monitor closely for confusion sedation and anticholinergic effects

Monitor

cognitive function monitoring

Use with caution and monitor for adverse effects.

⚠

pediatric_age

children adolescents
caution
FDA Category
C
Dose Adjustment

weight-based dosing with extreme caution

Key Recommendations

use only for acute dystonic reactions; not for chronic use in children

Monitor

monitor for behavioral changes and anticholinergic effects

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild to moderate
caution
FDA Category
N
Dose Adjustment

no significant adjustment needed

Key Recommendations

use with caution; monitor renal function

Monitor

renal function monitoring

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe
caution
FDA Category
N
Dose Adjustment

reduce dose by 25-50%

Key Recommendations

use with extreme caution; dose reduction recommended

Monitor

frequent renal function and drug level monitoring

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild to moderate
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

monitor liver function; adjust dose if needed

Monitor

liver function monitoring

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe
caution
FDA Category
N
Dose Adjustment

reduce dose significantly

Key Recommendations

avoid if possible; if needed use very low doses

Monitor

frequent liver function and drug level monitoring

Use with caution and monitor for adverse effects.

✗

alcohol_users

concurrent use
unsafe
FDA Category
N
Dose Adjustment

avoid combination

Key Recommendations

concurrent use with alcohol is not recommended due to additive CNS depression

Monitor

monitor for excessive sedation and respiratory depression

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

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:1954

Original FDA approval for Benztropine mesylate (Cogentin)

drug_classWHO
2023

Drug class

Value:Anticholinergic/Antiparkinson agent

Pharmacological classification N04BA01

usageFDA
2023

Primary indications

Value:Parkinson's disease, Drug-induced extrapyramidal symptoms

FDA-approved therapeutic uses

mechanismPharmacology references
2023

Mechanism of action

Value:Muscarinic receptor antagonist

Central anticholinergic activity blocking muscarinic receptors

Treats Parkinson's disease and drug-induced extrapyramidal symptoms (such as stiffness, tremors, and involuntary movements) associated with antipsychotic medications. May be used for tremor, rigidity, and bradykinesia in various parkinsonian syndromes.

Blocks the action of acetylcholine, a neurotransmitter, in the central nervous system. By restoring the balance between acetylcholine and dopamine, it helps reduce overactive cholinergic activity that contributes to movement disorders.

May cause drowsiness, dry mouth, blurred vision, or constipation. Should be used cautiously in elderly patients due to increased sensitivity to side effects. Can worsen symptoms in patients with tardive dyskinesia. Not for treating movement problems caused by conditions other than Parkinson's or drug-induced EPS.

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