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Ansuvimab

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

Ansuvimab-zykl is a recombinant human monoclonal antibody medication used to treat infections caused by Zaire ebolavirus, the virus responsible for Ebola virus disease. It works by binding to and neutralizing the virus, helping the body's immune system combat the infection. This treatment is reserved for patients with confirmed or suspected Ebola virus infection under appropriate clinical settings.

Quick summary

A monoclonal antibody therapy for treating Zaire ebolavirus (Ebola) infections.

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

Key facts at a glance

ATC
J06BD04
RxNorm
2472152
Generic
Ansuvimab
Class
atc-j06
Brands
Ebanga
Availability
rx
Lactation
unknown
Routes
—
Forms
injection
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 significantly exceeding the recommended therapeutic dose that may cause serious toxicity
Chronic overdose: Cumulative dosing information not well-established; monitor for prolonged exposure effects
Immediate actions
Discontinue infusion immediately, monitor vital signs, provide supportive care, activated charcoal if within appropriate time window
Antidote
No specific antidote established for monoclonal antibody overdose(Supportive care is primary treatment; effectiveness depends on prompt recognition and intervention)
Poison Control: 1-800-222-1222

Special Populations

8 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks, particularly in first trimester

Monitor

regular fetal monitoring and ultrasound assessments

Use with caution and monitor for adverse effects.

⚠

pregnancy

second third trimester
caution
FDA Category
C
Dose Adjustment

use only if benefits outweigh risks

Key Recommendations

may be used when benefits outweigh fetal risks, particularly for treatment of Ebola

Monitor

regular fetal monitoring including ultrasound for growth assessment

Use with caution and monitor for adverse effects.

✓

pediatric_age

neonates infants
safe
FDA Category
N
Dose Adjustment

weight-based dosing required

Key Recommendations

approved for use in pediatric patients including neonates for Ebola treatment

Monitor

close monitoring of vital signs and potential infusion reactions

✓

pediatric_age

children adolescents
safe
FDA Category
N
Dose Adjustment

weight-based dosing required

Key Recommendations

approved for use in pediatric patients for Ebola treatment

Monitor

monitor for infusion-related reactions

⚠

geriatric

elderly 65 years
caution
FDA Category
N
Dose Adjustment

no specific adjustment required

Key Recommendations

use with caution due to potential comorbidities and reduced immune function

Monitor

close monitoring of renal function and infusion reactions

Use with caution and monitor for adverse effects.

✓

renal_impairment

mild moderate severe
safe
FDA Category
N
Dose Adjustment

no dosage adjustment required

Key Recommendations

no dose adjustment needed for renal impairment as monoclonal antibodies are not renally eliminated

Monitor

standard monitoring for infusion reactions

⚠

hepatic_impairment

mild moderate
caution
FDA Category
N
Dose Adjustment

no specific adjustment required

Key Recommendations

use with caution in hepatic impairment, monitor liver function tests

Monitor

monitor liver function tests before and during treatment

Use with caution and monitor for adverse effects.

✓

lactation

breastfeeding
safe
FDA Category
N
Dose Adjustment

no adjustment required

Key Recommendations

monoclonal antibodies are not significantly excreted in breast milk, breastfeeding is generally considered compatible

Monitor

no specific monitoring required

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2020

First FDA approval for Ansuvimab-zykl (Ebanga)

drug_classWHO
2023

Drug class

Value:Monoclonal antibody (antiviral)

Therapeutic classification as antiviral agent

usageFDA
2023

Indication

Value:Treatment of Ebola virus disease (EVD)

Therapeutic indication for adult and pediatric patients

mechanismFDA
2023

Mechanism of action

Value:Binds to glycoprotein on Ebola virus

Pharmacological mechanism of action

Treatment of infection caused by Zaire ebolavirus in adults and children.

Ansuvimab is a recombinant human monoclonal antibody that binds to the Ebola virus surface protein, neutralizing the virus and enabling the immune system to clear the infection.

This is a specialized antiviral therapy administered intravenously under healthcare professional supervision. Clinical benefit is greatest when administered early in the course of infection. Safety and effectiveness may be established through clinical trials and emergency use pathways given the serious nature of Ebola virus disease.

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