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Dabigatran (Pradaxa): Uses, Side Effects, and Safety

Published: July 22, 2026Updated: July 22, 2026

Dabigatran is an oral blood thinner used to reduce the risk of blood clots in people with atrial fibrillation and to treat or prevent deep vein thrombosis and pulmonary embolism. It is also sometimes used after hip or knee replacement surgery to help prevent clots.

Quick summary

Dabigatran can prevent serious clots but also increases bleeding risk. Take it exactly as prescribed, and ask your doctor or pharmacist before changing your dose or combining it with other medicines.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 22, 2026Editorial policy

Key facts at a glance

ATC
B01AE07
Generic
Dabigatran
Class
doac
Brands
Pradaxa
Availability
rx
Pregnancy
C
Lactation
unsafe
Half-life (h)
12
Onset (min)
60
Duration (h)
24
Routes
oral
Forms
capsule
Regions
US, EU, JP
Monitoring
renal-function, bleeding

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)capsule
Usual dose
150mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)capsule
Usual dose
weight-based, 150mg twice daily for ≥50kg
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)capsule
Usual dose
150mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses above 15000 mg may result in significant bleeding risk
Chronic overdose: Prolonged supratherapeutic dosing leading to elevated trough levels and increased bleeding risk
Immediate actions
Discontinue drug, activate charcoal if within 2 hours of ingestion, monitor coagulation parameters
Antidote
Idarucizumab (Praxbind)(Reverses anticoagulation within minutes)
Poison Control: 1-800-222-1222

Special Populations

12 groups
✗

pregnancy

first trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks

Monitor

regular fetal monitoring

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

✗

pregnancy

third trimester
unsafe
FDA Category
C
Dose Adjustment

avoid

Key Recommendations

do not use near delivery due to risk of hemorrhage

Monitor

close maternal and fetal monitoring

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

✗

lactation

breastfeeding
unsafe
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

do not use while breastfeeding; switch to alternative anticoagulant

Monitor

none

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

⚠

geriatric

elderly 65 75
caution
FDA Category
N
Dose Adjustment

consider lower dose 110mg BID

Key Recommendations

use reduced dose in patients at increased bleeding risk

Monitor

regular renal function monitoring

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly over 75
caution
FDA Category
N
Dose Adjustment

consider lower dose 110mg BID

Key Recommendations

assess renal function and bleeding risk before initiating

Monitor

periodic renal function and hemoglobin monitoring

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild crcl 50 80
caution
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

standard dose 150mg BID acceptable

Monitor

periodic renal function monitoring

Use with caution and monitor for adverse effects.

⚠

renal_impairment

moderate crcl 30 50
caution
FDA Category
N
Dose Adjustment

no dose adjustment for most patients

Key Recommendations

consider 150mg BID; assess bleeding risk

Monitor

regular renal function monitoring every 6 months

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe crcl 15 30
caution
FDA Category
N
Dose Adjustment

use reduced dose 110mg BID

Key Recommendations

reserved for patients with no alternative; monitor closely

Monitor

frequent renal function and bleeding assessment

Use with caution and monitor for adverse effects.

✗

renal_impairment

esrd crcl 15
contraindicated
FDA Category
C
Dose Adjustment

do not use

Key Recommendations

contraindicated in patients with CrCl <15 mL/min

Monitor

N/A

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

✓

hepatic_impairment

mild
safe
FDA Category
N
Dose Adjustment

no adjustment required

Key Recommendations

standard dose 150mg BID acceptable

Monitor

standard monitoring

⚠

hepatic_impairment

moderate severe
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

limited data; assess risk-benefit carefully

Monitor

monitor for signs of liver dysfunction

Use with caution and monitor for adverse effects.

✗

pediatric_age

children under 18
unsafe
FDA Category
N
Dose Adjustment

not approved for pediatric use

Key Recommendations

not indicated for patients under 18 years of age

Monitor

N/A

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

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2010

Initial FDA approval for stroke prevention in atrial fibrillation

drug_classWHO
2023

Drug class

Value:Direct thrombin inhibitor

Anticoagulant classification

usageMedical guidelines
2023

Common uses

Value:Stroke prevention in atrial fibrillation, treatment of DVT and pulmonary embolism, prevention of blood clots after orthopedic surgery

Therapeutic indications

pharmacologyFDA
2023

Mechanism of action

Value:Direct thrombin inhibitor

Primary pharmacological mechanism

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 22, 2026. · Read our editorial policy