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Maprotiline

Published: July 26, 2026Updated: August 20, 2026

Maprotiline is a tetracyclic antidepressant (TeCA) used primarily to treat major depressive disorder and associated anxiety symptoms. It works by inhibiting the reuptake of norepinephrine in the brain, helping to restore chemical balance and improve mood.

Quick summary

A tetracyclic antidepressant for treating depression and anxiety symptoms by increasing norepinephrine levels in the brain.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ATC
N06AA21
RxNorm
6646
Generic
Maprotiline
Class
atc-n06
Brands
—
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
25-75mg once daily
Maximum
consult physician
Frequency
once daily (typically at bedtime)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (not recommended)tablet
Usual dose
not recommended
Maximum
consult physician
Frequency
N/A
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
25-50mg once daily
Maximum
consult physician
Frequency
once daily (typically at bedtime)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses exceeding 1000mg may cause serious toxicity and potentially fatal outcomes
Chronic overdose: Accumulation may occur with repeated supratherapeutic dosing exceeding 300mg daily
Immediate actions
Gastric lavage within 1-2 hours of ingestion, activated charcoal, ECG monitoring, supportive care
Antidote
No specific antidote available; treatment is supportive(Supportive care is the mainstay of treatment; early intervention improves outcomes)
Poison Control: 1-800-222-1222

Special Populations

7 groups
✗

pregnancy

first trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks

Monitor

regular fetal monitoring

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

✗

pregnancy

third trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

discontinue before delivery if possible due to neonatal toxicity risk

Monitor

monitor newborn for withdrawal symptoms and respiratory distress

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

✗

lactation

breastfeeding
unsafe
FDA Category
N
Dose Adjustment

avoid

Key Recommendations

do not breastfeed while taking maprotiline

Monitor

monitor infant for sedation, poor feeding, and respiratory depression

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

✗

pediatric_age

adolescents 12 17
unsafe
FDA Category
C
Dose Adjustment

not recommended

Key Recommendations

not approved for use in pediatric population; increased risk of suicidal ideation

Monitor

close monitoring for behavioral changes

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

⚠

geriatric

elderly over 65
caution
FDA Category
C
Dose Adjustment

reduce dose by 50%

Key Recommendations

use lowest effective dose; increased sensitivity to anticholinergic effects

Monitor

monitor for falls, confusion, cardiac conduction

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe
caution
FDA Category
C
Dose Adjustment

reduce dose by 50%

Key Recommendations

use with caution; monitor renal function

Monitor

monitor renal function and drug levels

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

moderate to severe
caution
FDA Category
C
Dose Adjustment

reduce dose by 50%

Key Recommendations

use with caution; maprotiline is hepatically metabolized

Monitor

monitor liver function and drug levels

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:1980s

FDA approval year for Maprotiline

drug_classWHO
2023

Drug class

Value:Tetracyclic antidepressant

Pharmacological classification

usageMedical guidelines
2023

Primary indication

Value:Major depressive disorder

Primary therapeutic use

mechanismPharmacology databases
2023

Mechanism of action

Value:Norepinephrine reuptake inhibitor

Pharmacological mechanism

Treatment of major depressive disorder and depressive episodes, particularly when accompanied by anxiety, agitation, or sleep disturbances.

Acts as a norepinephrine reuptake inhibitor (NRI), blocking the reabsorption of norepinephrine in the brain, which increases its availability and helps improve mood. Also exhibits anticholinergic and antihistamine properties.

Has significant anticholinergic effects (dry mouth, constipation, urinary retention, blurred vision). May cause sedation, weight gain, and orthostatic hypotension. Caution required in patients with seizure disorders due to lowered seizure threshold. Should not be stopped abruptly.

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 20, 2026. · Read our editorial policy