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Bosutinib Monohydrate

Published: July 26, 2026Updated: August 24, 2026

Bosutinib Monohydrate is a targeted therapy medication known as a tyrosine kinase inhibitor used to treat Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML). It is specifically indicated for adult patients who have developed resistance or intolerance to prior leukemia therapies, including other tyrosine kinase inhibitors. The medication works by blocking specific proteins that drive abnormal cell growth in leukemia cells.

Quick summary

Bosutinib Monohydrate is a tyrosine kinase inhibitor used to treat Philadelphia chromosome-positive chronic myeloid leukemia in adults who have become resistant or intolerant to other therapies.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

RxNorm
1314319
Generic
Bosutinib Monohydrate
Class
pin-variant
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
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: Consult local poison control center for specific information
Chronic overdose: Varies by patient
Immediate actions
Call poison control center: 1-800-222-1222
Poison Control: 1-800-222-1222

Special Populations

12 groups
✗

pregnancy

first trimester
unsafe
FDA Category
D
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks - bosutinib may cause fetal harm based on animal studies

Monitor

regular fetal monitoring including ultrasound assessments

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

✗

pregnancy

second trimester
unsafe
FDA Category
D
Dose Adjustment

avoid if possible

Key Recommendations

discontinue therapy if pregnancy occurs during treatment

Monitor

regular fetal monitoring and growth assessments

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

✗

pregnancy

third trimester
unsafe
FDA Category
D
Dose Adjustment

avoid if possible

Key Recommendations

avoid use near delivery due to potential complications

Monitor

regular fetal monitoring and assessment for preterm labor

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

✗

lactation

breastfeeding
contraindicated
FDA Category
N
Dose Adjustment

not applicable

Key Recommendations

do not breastfeed during bosutinib therapy and for at least 2 weeks after last dose

Monitor

not applicable

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

⚠

geriatric

elderly
caution
FDA Category
N
Dose Adjustment

no specific dose adjustment required

Key Recommendations

monitor for adverse events - elderly patients may have increased susceptibility to diarrhea and myelosuppression

Monitor

regular monitoring of blood counts and gastrointestinal symptoms

Use with caution and monitor for adverse effects.

✗

pediatric_age

adolescents
unsafe
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

bosutinib is not indicated for use in patients under 18 years of age - safety and efficacy not established

Monitor

not applicable for pediatric population

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

⚠

renal_impairment

mild renal impairment
caution
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no dose adjustment required for mild renal impairment (CrCl 50-80 mL/min)

Monitor

monitor renal function periodically

Use with caution and monitor for adverse effects.

⚠

renal_impairment

moderate renal impairment
caution
FDA Category
N
Dose Adjustment

reduce dose

Key Recommendations

dose reduction recommended for moderate renal impairment (CrCl 30-50 mL/min) - consider reducing starting dose to 400 mg once daily

Monitor

regular monitoring of renal function and adverse effects

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe renal impairment
caution
FDA Category
N
Dose Adjustment

reduce dose significantly

Key Recommendations

dose reduction recommended for severe renal impairment (CrCl <30 mL/min) - consider reducing starting dose to 300 mg once daily

Monitor

close monitoring of renal function and adverse effects

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild hepatic impairment
caution
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no dose adjustment required for mild hepatic impairment (Child-Pugh Class A)

Monitor

monitor liver function tests periodically

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

moderate hepatic impairment
caution
FDA Category
N
Dose Adjustment

reduce dose

Key Recommendations

dose reduction recommended for moderate hepatic impairment (Child-Pugh Class B) - consider reducing starting dose to 400 mg once daily

Monitor

frequent monitoring of liver function tests

Use with caution and monitor for adverse effects.

✗

hepatic_impairment

severe hepatic impairment
unsafe
FDA Category
N
Dose Adjustment

avoid if possible

Key Recommendations

use with extreme caution in severe hepatic impairment (Child-Pugh Class C) - consider alternative therapy

Monitor

frequent monitoring of liver function tests and clinical status

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

Statistics and clinical data

drug_classWHO
2023

Drug class

Value:Tyrosine kinase inhibitor

Bosutinib is a Bcr-Abl tyrosine kinase inhibitor

usageFDA
2023

Common uses

Value:Chronic myeloid leukemia (CML)

FDA-approved indication for treatment of chronic phase, accelerated phase, or blast phase Philadelphia chromosome-positive CML

prescribingFDA
2023

FDA approval year

Value:2012

Initial FDA approval date for Bosutinib

mechanismFDA
2023

Mechanism of action

Value:Bcr-Abl tyrosine kinase inhibitor

Inhibits Bcr-Abl fusion protein to block leukemic cell proliferation

Treatment of chronic, accelerated, or blast phase Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML) in adult patients with resistance or intolerance to prior tyrosine kinase inhibitor therapy.

Acts as a dual Src/Abl tyrosine kinase inhibitor that blocks the BCR-ABL oncoprotein and Src family kinases, disrupting abnormal signaling pathways that promote uncontrolled proliferation of leukemic cells.

Administered orally once daily with food. Common adverse effects include gastrointestinal symptoms (diarrhea, nausea, vomiting), fluid retention, rash, and liver enzyme elevations. Requires regular monitoring of hematologic and hepatic parameters. May interact with proton pump inhibitors and strong CYP3A4 inhibitors. Contraindicated during pregnancy due to potential fetal harm.

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 August 24, 2026. · Read our editorial policy