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Acitretin

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

Acitretin is an oral retinoid medication used to treat severe forms of psoriasis and other keratinization disorders. It works by normalizing skin cell growth and differentiation, helping to reduce scaling, thickening, and inflammation of the skin.

Quick summary

Acitretin is a vitamin A derivative used to treat severe psoriasis by normalizing skin cell turnover.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 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
D05BB02
RxNorm
16818
Generic
Acitretin
Class
atc-d05
Brands
—
Availability
rx
Lactation
unknown
Routes
oral
Forms
capsule
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 that may cause serious toxicity - approximately 20-40 times the maximum daily therapeutic dose
Chronic overdose: Cumulative toxicity from prolonged use at supratherapeutic doses leading to hypervitaminosis A symptoms
Immediate actions
Gastric lavage may be considered if presentation is within 1-2 hours of ingestion; otherwise supportive care and monitoring
Antidote
No specific antidote exists for acitretin overdose(Supportive care is the primary treatment; early intervention improves outcomes)
Poison Control: 1-800-222-1222

Special Populations

8 groups
✗

pregnancy

first trimester
contraindicated
FDA Category
X
Dose Adjustment

avoid completely

Key Recommendations

acitretin is contraindicated in pregnancy due to high teratogenic risk. women of childbearing potential must use effective contraception during treatment and for 3 years after discontinuation

Monitor

regular fetal ultrasound examinations and pregnancy testing recommended

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

✗

pregnancy

second trimester
contraindicated
FDA Category
X
Dose Adjustment

avoid completely

Key Recommendations

continue contraception and avoid pregnancy throughout treatment and for 3 years after stopping

Monitor

fetal monitoring if pregnancy occurs despite warnings

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

✗

pregnancy

third trimester
contraindicated
FDA Category
X
Dose Adjustment

avoid completely

Key Recommendations

acitretin should be discontinued immediately if pregnancy is suspected

Monitor

comprehensive fetal assessment if pregnancy occurs

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

✗

lactation

not applicable
contraindicated
FDA Category
X
Dose Adjustment

avoid completely

Key Recommendations

acitretin is contraindicated during breastfeeding due to potential for severe adverse effects in infant

Monitor

not applicable - do not breastfeed

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

⚠

pediatric_age

adolescents 12 17
caution
FDA Category
C
Dose Adjustment

use lowest effective dose, typically 0.5 mg/kg up to 35 mg/day

Key Recommendations

use only when benefits outweigh risks. monitor growth and skeletal development closely

Monitor

regular monitoring of growth parameters, bone age and skeletal development

Use with caution and monitor for adverse effects.

⚠

geriatric

age 65 and older
caution
FDA Category
C
Dose Adjustment

start with lower dose, typically 10-25 mg daily

Key Recommendations

use with caution due to increased sensitivity to adverse effects. monitor for musculoskeletal symptoms

Monitor

regular liver function tests, lipid panel and assessment for musculoskeletal symptoms

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild to moderate
caution
FDA Category
C
Dose Adjustment

reduce dose, start with 10-25 mg daily

Key Recommendations

use with caution. acitretin and its metabolites are eliminated renally to some extent

Monitor

monitor renal function and adjust dose based on creatinine clearance

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild to moderate
caution
FDA Category
C
Dose Adjustment

use with caution, may require dose reduction

Key Recommendations

acitretin is metabolized hepatically. use with caution in hepatic impairment

Monitor

frequent liver function tests required, monitor for signs of hepatotoxicity

Use with caution and monitor for adverse effects.

Statistics and clinical data

drug_classWHO
2023

Drug class

Value:Retinoid

Acitretin belongs to the retinoid class of drugs

prescribingFDA
2023

FDA approval year

Value:1997

FDA approval year for Acitretin

usageFDA
2023

Primary indication

Value:Severe psoriasis

Main therapeutic use of Acitretin

mechanismFDA
2023

Mechanism of action

Value:Retinoid receptor agonist

Primary pharmacological mechanism

Acitretin is primarily prescribed for severe plaque psoriasis, pustular psoriasis, and other severe keratinization disorders when conventional topical therapies have been insufficient.

As a systemic retinoid, acitretin modulates cell proliferation and differentiation in the epidermis. It helps normalize the shedding of skin cells and reduces the excessive scaling and thickening characteristic of psoriasis.

Acitretin is a known teratogen and is contraindicated in pregnancy; women of childbearing potential must use effective contraception during and after treatment. Common side effects include mucocutaneous symptoms such as dry skin, cheilitis, and photosensitivity. Regular monitoring of liver function and lipid levels is recommended during therapy.

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