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Fluvoxamine

Published: July 26, 2026Updated: July 26, 2026

Fluvoxamine is an antidepressant medication classified as a selective serotonin reuptake inhibitor (SSRI). It works by increasing serotonin levels in the brain, which helps improve mood and reduce anxiety. This medication is primarily prescribed to treat obsessive-compulsive disorder (OCD) and may also be used for depression and various anxiety disorders.

Quick summary

Fluvoxamine is an SSRI antidepressant used to treat OCD and anxiety disorders by increasing serotonin levels in the brain.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy
BOXED WARNING

This medication carries a boxed (black box) warning — the strongest type of FDA warning. Review the full prescribing information before use.

Key facts at a glance

ATC
N06AB08
RxNorm
42355
Generic
Fluvoxamine
Class
atc-n06
Brands
—
Availability
rx
Lactation
unknown
Routes
oral
Forms
capsule, 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
50-300mg daily
Maximum
consult physician
Frequency
once or twice daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
25-200mg daily
Maximum
consult physician
Frequency
once or twice daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
25-50mg 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 that may cause serious toxicity
Chronic overdose: cumulative toxicity from repeated doses above therapeutic range over extended periods
Immediate actions
gastric lavage within 1-2 hours, activated charcoal, supportive care, cardiac monitoring
Antidote
no specific antidote(supportive care is mainstay of treatment)
Poison Control: 1-800-222-1222

Special Populations

8 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

use only if benefits outweigh risks; consider alternative antidepressants with more established safety data

Monitor

regular prenatal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

taper before delivery if possible

Key Recommendations

consider tapering in third trimester to reduce neonatal withdrawal symptoms

Monitor

monitor newborn for respiratory distress, feeding difficulties, and withdrawal signs

Use with caution and monitor for adverse effects.

⚠

lactation

breastfeeding
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

fluvoxamine is excreted in breast milk; monitor infant for excessive drowsiness, feeding problems, or weight loss

Monitor

monitor infant for sedation, poor feeding, and developmental milestones

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly
caution
FDA Category
C
Dose Adjustment

start with lower dose (25-50mg), titrate slowly

Key Recommendations

use caution due to increased sensitivity to side effects; increased risk of hyponatremia and bleeding

Monitor

monitor sodium levels, signs of bleeding, and blood pressure

Use with caution and monitor for adverse effects.

⚠

pediatric_age

children adolescents
caution
FDA Category
C
Dose Adjustment

start at lower dose, maximum 200mg/day for ages 8-17

Key Recommendations

FDA approved for OCD in pediatric patients age 8 and older; monitor closely for suicidal ideation and behavioral changes

Monitor

close monitoring for suicidal thoughts and behavioral changes

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe renal impairment
caution
FDA Category
C
Dose Adjustment

reduce dose in severe impairment

Key Recommendations

use with caution; monitor renal function

Monitor

monitor renal function tests periodically

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

fluvoxamine is extensively metabolized in liver; use lower doses and monitor liver function

Monitor

regular liver function monitoring

Use with caution and monitor for adverse effects.

✗

alcohol_users

concurrent use
unsafe
FDA Category
C
Dose Adjustment

avoid concomitant use

Key Recommendations

avoid alcohol consumption while taking fluvoxamine; combination increases CNS depression

Monitor

monitor for increased sedation and impaired coordination

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

Statistics and clinical data

drug_classFDA
2023

Drug class

Value:SSRI (Selective Serotonin Reuptake Inhibitor)

Antidepressant classification

prescribingFDA
2023

FDA approval year

Value:1994

Initial FDA approval for OCD treatment

usageMedical guidelines
2023

Common uses

Value:Obsessive-compulsive disorder, Depression, Anxiety disorders

Primary therapeutic applications

mechanismMedical literature
2023

Mechanism of action

Value:Serotonin reuptake inhibition

Primary pharmacological mechanism

Fluvoxamine is FDA-approved for the treatment of obsessive-compulsive disorder (OCD) in adults and children. It is also used off-label for depression, social anxiety disorder, panic disorder, and post-traumatic stress disorder (PTSD).

Fluvoxamine is a selective serotonin reuptake inhibitor (SSRI) that works by blocking the reabsorption (reuptake) of serotonin in the brain. This increases serotonin levels in the synaptic space between neurons, enhancing mood regulation and reducing anxiety symptoms associated with OCD and other conditions.

Common side effects include nausea, headache, insomnia, and drowsiness. Do not take fluvoxamine with MAO inhibitors or thioridazine. Discontinuation should be gradual under medical supervision to avoid withdrawal symptoms. May increase suicidal ideation in young adults, particularly when starting treatment. Always consult your healthcare provider before making any changes to your medication regimen.

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 July 26, 2026. · Read our editorial policy