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Idarucizumab

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

Idarucizumab is a targeted reversal agent specifically designed to neutralize the anticoagulant effects of dabigatran. It is a monoclonal antibody fragment that binds to dabigatran with high affinity, rapidly reversing its blood-thinning effects. This medication is used in emergency situations when patients taking dabigatran experience life-threatening bleeding or require urgent surgical procedures.

Quick summary

Idarucizumab is an emergency antidote that rapidly reverses dabigatran anticoagulation in patients with severe bleeding or those needing urgent surgery.

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

Key facts at a glance

ATC
V03AB37
RxNorm
1716191
Generic
Idarucizumab
Class
atc-v03
Brands
Praxbind
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)IV infusion
Usual dose
5g (5000mg) as single infusion
Maximum
consult physician
Frequency
single dose
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)IV infusion
Usual dose
5g (5000mg) as single infusion (or weight-based 30mg/kg max 5g)
Maximum
consult physician
Frequency
single dose
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)IV infusion
Usual dose
5g (5000mg) as single infusion
Maximum
consult physician
Frequency
single dose
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses significantly exceeding the recommended 5g may increase risk of adverse reactions including hypersensitivity and infusion-related reactions
Chronic overdose: No cumulative toxicity data available as drug is typically administered as single dose in emergency setting
Immediate actions
Discontinue infusion, monitor vital signs, supportive care, treat allergic reactions as needed
Antidote
No specific antidote exists for idarucizumab; manage symptomatically(Supportive care is primary management approach)
Poison Control: 1-800-222-1222

Special Populations

8 groups
⚠

pregnancy

general pregnancy
caution
FDA Category
C
Dose Adjustment

use only if benefits outweigh risks

Key Recommendations

use only in emergency situations when benefits outweigh potential risks to fetus

Monitor

fetal monitoring recommended

Use with caution and monitor for adverse effects.

⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during first trimester unless emergency situation with life-threatening bleeding

Monitor

regular fetal monitoring

Use with caution and monitor for adverse effects.

✓

lactation

breastfeeding
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

compatible with breastfeeding; large molecular size limits milk transfer

Monitor

no specific monitoring required

✓

geriatric

elderly 65
safe
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

can be used in elderly patients; no dose modification needed for emergency reversal

Monitor

standard monitoring of coagulation parameters

?

pediatric_age

children under 18
unknown
FDA Category
C
Dose Adjustment

not established

Key Recommendations

not recommended for use in pediatric patients due to limited safety and efficacy data

Monitor

not applicable

⚠

renal_impairment

severe renal impairment
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

use with caution in severe renal impairment; drug is renally eliminated but may be used in emergencies

Monitor

monitor renal function and coagulation parameters

Use with caution and monitor for adverse effects.

✓

renal_impairment

mild moderate renal impairment
safe
FDA Category
N
Dose Adjustment

no dose adjustment needed for emergency use

Key Recommendations

no dose adjustment required; can be used for emergency reversal

Monitor

standard coagulation monitoring

✓

hepatic_impairment

hepatic impairment
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no dose adjustment required; not significantly metabolized by hepatic pathways

Monitor

standard monitoring

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2015

FDA approval for emergency reversal of dabigatran

drug_classWHO
2023

Drug class

Value:Direct thrombin inhibitor reversal agent

Specific reversal agent for dabigatran

mechanismFDA
2023

Mechanism of action

Value:Humanized monoclonal antibody fragment binding dabigatran

Binds to dabigatran with 350-fold higher affinity than thrombin

usageFDA
2023

Primary indication

Value:Emergency reversal of dabigatran in life-threatening bleeding or urgent surgery

Reversal agent for anticoagulation

Used to reverse the anticoagulant effects of dabigatran in adult patients when rapid reversal is required, including life-threatening or uncontrolled bleeding and emergency surgeries or procedures where normal blood clotting is essential.

Idarucizumab is a humanized monoclonal antibody fragment (Fab) that binds to dabigatran and its acylglucuronide metabolites with much higher affinity than dabigatran's binding affinity to thrombin, effectively neutralizing its anticoagulant activity.

Administered intravenously by healthcare professionals. Reversal typically occurs within minutes. Thromboembolic risk may increase after use if anticoagulation is not resumed when appropriate. Safety in pregnant women and children has not been established. May interfere with coagulation assays.

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