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Tildrakizumab

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

Tildrakizumab is a biologic medication used to treat moderate to severe plaque psoriasis in adults. It works by targeting and blocking IL-23, a cytokine that plays a key role in the inflammatory processes underlying psoriasis.

Quick summary

Tildrakizumab is an injectable biologic that treats plaque psoriasis by blocking the IL-23 inflammatory pathway.

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

Key facts at a glance

ATC
L04AC17
RxNorm
2053436
Generic
Tildrakizumab
Class
atc-l04
Brands
Ilumya
Availability
rx
Lactation
unknown
Routes
—
Forms
prefilled syringe
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)injection
Usual dose
100mg
Maximum
consult physician
Frequency
at weeks 0 and 4, then every 12 weeks
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)injection
Usual dose
100mg
Maximum
consult physician
Frequency
at weeks 0 and 4, then every 12 weeks (approved for age 18+)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)injection
Usual dose
100mg
Maximum
consult physician
Frequency
at weeks 0 and 4, then every 12 weeks
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses up to 200mg have been studied in clinical trials without reaching maximum tolerated dose
Chronic overdose: No established chronic toxicity threshold; accumulation not expected due to long dosing interval
Immediate actions
Discontinue medication, monitor for infections, provide supportive care, consult specialist
Antidote
No specific antidote available(Supportive care is primary treatment; no targeted antidote exists)
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 potential risks to fetus; discontinue if pregnancy detected

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

consider discontinuing therapy in second trimester if disease is controlled

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

consider discontinuation near delivery; discuss with healthcare provider

Monitor

fetal monitoring and assessment of newborn

Use with caution and monitor for adverse effects.

?

lactation

breastfeeding
unknown
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

discontinue breastfeeding during treatment or discontinue tildrakizumab; decide whether to stop nursing or stop therapy

Monitor

monitor infant for signs of infection

✗

pediatric_age

under 18 years
unsafe
FDA Category
N
Dose Adjustment

not applicable

Key Recommendations

not approved for use in patients under 18 years of age; not recommended

Monitor

not applicable

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

✓

geriatric

over 65 years
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

can be used at standard dose; monitor for infections

Monitor

general geriatric assessment

✓

renal_impairment

mild to moderate
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no dose adjustment required for mild to moderate renal impairment

Monitor

standard monitoring

✓

hepatic_impairment

mild to moderate
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no dose adjustment required for mild to moderate hepatic impairment

Monitor

standard monitoring

Statistics and clinical data

drug_classFDA
2023

Drug class

Value:IL-23 inhibitor (Biologic DMARD)

Monoclonal antibody targeting IL-23 p19 subunit

prescribingFDA
2023

FDA approval year

Value:2018

FDA approved March 2018

usageFDA
2023

Primary indication

Value:Moderate-to-severe plaque psoriasis

Approved for adults with moderate-to-severe plaque psoriasis who are candidates for systemic therapy

administrationFDA
2023

Administration route

Value:Subcutaneous injection

100 mg at weeks 0, 4, then every 12 weeks

Treatment of moderate to severe plaque psoriasis in adult patients who are candidates for systemic therapy or phototherapy

Tildrakizumab is a humanized monoclonal antibody that selectively binds to the p19 subunit of IL-23, blocking its interaction with the IL-23 receptor and inhibiting the inflammatory cascade that contributes to psoriasis

Administered as a subcutaneous injection by a healthcare provider. Patients should be monitored for infections as immunosuppression may occur. Not recommended for use with live vaccines. Common side effects may include upper respiratory infections and injection site reactions.

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