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Agalsidase Beta

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

Agalsidase Beta is an enzyme replacement therapy used to treat Fabry disease, a rare genetic disorder caused by deficiency of the α-galactosidase A enzyme. This medication works by providing an exogenous source of the enzyme, which is taken up by cells and transported to lysosomes where it breaks down accumulated globotriaosylceramide (GL-3), reducing the harmful buildup that causes disease symptoms.

Quick summary

Agalsidase Beta is an enzyme replacement therapy for Fabry disease that reduces accumulated GL-3 by providing the missing α-galactosidase A enzyme.

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
A16AB04
RxNorm
338817
Generic
Agalsidase Beta
Class
atc-a16
Brands
Fabrazyme
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
1 mg/kg every 2 weeks
Maximum
consult physician
Frequency
every 2 weeks
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
1 mg/kg every 2 weeks
Maximum
consult physician
Frequency
every 2 weeks
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
1 mg/kg every 2 weeks
Maximum
consult physician
Frequency
every 2 weeks
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose significantly exceeding the recommended 1 mg/kg that may cause serious toxicity
Chronic overdose: Cumulative dosing above recommended 1 mg/kg every 2 weeks may lead to increased risk of infusion-related reactions and immunogenicity
Immediate actions
Discontinue infusion immediately, monitor vital signs, provide supportive care including antihistamines and corticosteroids
Antidote
No specific antidote available(Supportive care is primary management; no specific antidote exists)
Poison Control: 1-800-222-1222

Special Populations

11 groups
⚠

pregnancy

first trimester
caution
FDA Category
B
Dose Adjustment

no specific adjustment

Key Recommendations

use only if clearly needed after benefit-risk assessment

Monitor

regular prenatal care and fetal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

second trimester
caution
FDA Category
B
Dose Adjustment

no specific adjustment

Key Recommendations

continue therapy if benefits outweigh potential risks

Monitor

routine prenatal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
B
Dose Adjustment

no specific adjustment

Key Recommendations

may continue treatment per physician assessment

Monitor

fetal wellbeing monitoring

Use with caution and monitor for adverse effects.

⚠

lactation

breastfeeding
caution
FDA Category
N
Dose Adjustment

unknown

Key Recommendations

discontinue breastfeeding or pump and discard milk during treatment

Monitor

monitor infant for any adverse effects

Use with caution and monitor for adverse effects.

✓

pediatric_age

children 2 12
safe
FDA Category
B
Dose Adjustment

1 mg/kg every 2 weeks

Key Recommendations

approved for patients 2 years and older

Monitor

regular assessment of growth and development

✓

pediatric_age

adolescents 13 17
safe
FDA Category
B
Dose Adjustment

1 mg/kg every 2 weeks

Key Recommendations

same dosing as adults

Monitor

standard pediatric monitoring

⚠

geriatric

elderly over 65
caution
FDA Category
B
Dose Adjustment

no specific adjustment

Key Recommendations

no dose adjustment required but monitor closely

Monitor

monitor renal and cardiac function

Use with caution and monitor for adverse effects.

✓

renal_impairment

mild to moderate
safe
FDA Category
B
Dose Adjustment

no dose adjustment needed

Key Recommendations

standard dosing applies

Monitor

standard monitoring

⚠

renal_impairment

severe
caution
FDA Category
B
Dose Adjustment

no specific adjustment

Key Recommendations

use with caution and monitor closely

Monitor

close monitoring of renal function

Use with caution and monitor for adverse effects.

?

hepatic_impairment

mild
unknown
FDA Category
B
Dose Adjustment

no specific data

Key Recommendations

use with caution

Monitor

monitor liver function tests

?

hepatic_impairment

moderate to severe
unknown
FDA Category
B
Dose Adjustment

not studied

Key Recommendations

use only if benefits outweigh risks

Monitor

close monitoring of hepatic function

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2003

FDA approval for Fabry disease treatment

drug_classWHO
2023

Drug class

Value:Enzyme replacement therapy

Therapeutic classification

usageMedical guidelines
2023

Common uses

Value:Fabry disease treatment

Therapeutic indication for Fabry disease

mechanismFDA
2023

Mechanism of action

Value:Recombinant human alpha-galactosidase A

Enzyme replacement therapy for glycolipid metabolism

Agalsidase Beta is indicated for long-term enzyme replacement therapy in patients with a confirmed diagnosis of Fabry disease (Fabry's disease), a rare X-linked lysosomal storage disorder caused by deficiency of the α-galactosidase A enzyme.

Agalsidase Beta provides an exogenous source of α-galactosidase A enzyme. After intravenous administration, the enzyme is internalized by cells and targeted to lysosomes, where it exerts its enzymatic activity to hydrolyze accumulated globotriaosylceramide (GL-3) into galactosylceramide, thereby reducing substrate storage in various tissues.

Agalsidase Beta is administered via intravenous infusion, typically every 2 weeks. Common adverse reactions include infusion-associated reactions such as fever, chills, and flushing. Antibody formation against the enzyme may occur in some patients. Treatment should be initiated and supervised by physicians experienced in managing Fabry disease. Regular monitoring of clinical response and GL-3 levels may be performed to assess treatment efficacy.

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