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Vincristine

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

Vincristine is a chemotherapy medication classified as a vinca alkaloid that works by binding to tubulin and preventing microtubule assembly, thereby inhibiting cell division in rapidly proliferating cancer cells. It is primarily used to treat various cancers including acute lymphoblastic leukemia, Hodgkin and non-Hodgkin lymphomas, rhabdomyosarcoma, neuroblastoma, and Wilms tumor, with extensive use in pediatric oncology regimens.

Quick summary

Vincristine is a chemotherapy drug that stops cancer cell division by disrupting microtubule function and is used to treat several types of cancer in both children and adults.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 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
L01CA02
RxNorm
11202
Generic
Vincristine
Class
atc-l01
Brands
Marqibo, Vincasar
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)intravenous injection
Usual dose
1.4 mg/m² (max 2 mg)
Maximum
consult physician
Frequency
once weekly
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)intravenous injection
Usual dose
1.5-2 mg/m²
Maximum
consult physician
Frequency
once weekly
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)intravenous injection
Usual dose
1.4 mg/m² (max 2 mg)
Maximum
consult physician
Frequency
once weekly
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses exceeding 4 mg (more than double the maximum recommended dose of 2 mg) may cause serious toxicity
Chronic overdose: Cumulative doses above the recommended maximum of 2 mg per dose can lead to severe neurotoxicity
Immediate actions
Discontinue infusion immediately if extravasation occurs; supportive care including IV fluids, bowel regimen, pain management, and cardiac monitoring; there is no specific antidote
Antidote
No specific antidote exists(Treatment is supportive; no antidote has proven effectiveness for vincristine overdose)
Poison Control: 1-800-222-1222

Special Populations

8 groups
✗

pregnancy

first trimester
unsafe
FDA Category
D
Dose Adjustment

avoid use

Key Recommendations

vincristine is contraindicated during pregnancy due to teratogenic potential

Monitor

regular fetal monitoring and obstetric assessment

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

✗

pregnancy

second trimester
unsafe
FDA Category
D
Dose Adjustment

avoid use

Key Recommendations

avoid unless critical need; consider alternative therapy

Monitor

fetal growth monitoring

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

⚠

pregnancy

third trimester
caution
FDA Category
D
Dose Adjustment

individualize dosing

Key Recommendations

may be used near term with careful risk-benefit assessment; consider timing of delivery

Monitor

fetal monitoring, assess for preterm labor

Use with caution and monitor for adverse effects.

✗

lactation

not applicable
contraindicated
FDA Category
N
Dose Adjustment

discontinue breastfeeding

Key Recommendations

vincristine is contraindicated during breastfeeding; do not breastfeed during treatment 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.

✓

pediatric_age

children
safe
FDA Category
N
Dose Adjustment

weight-based or bsa-based dosing

Key Recommendations

commonly used in pediatric oncology for acute lymphoblastic leukemia, lymphomas, and wilms tumor; neurotoxicity monitoring essential

Monitor

monitor for neurotoxicity, myelosuppression, and autonomic effects

⚠

geriatric

over 65 years
caution
FDA Category
N
Dose Adjustment

consider dose reduction

Key Recommendations

use with caution due to increased susceptibility to neurotoxicity; start at lower end of dosing range

Monitor

close monitoring for neurotoxicity, autonomic dysfunction, and myelosuppression

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe
caution
FDA Category
N
Dose Adjustment

no standard dose reduction; monitor closely

Key Recommendations

primarily hepatically metabolized; however caution advised in severe impairment due to altered protein binding

Monitor

monitor hematologic toxicity and renal function

Use with caution and monitor for adverse effects.

✗

hepatic_impairment

severe
unsafe
FDA Category
N
Dose Adjustment

reduce dose by 50%

Key Recommendations

dose reduction required in severe hepatic impairment; contraindicated with severe hyperbilirubinemia

Monitor

monitor liver function tests and bilirubin levels

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

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1960s

General prescribing information

drug_classWHO
2023

Drug class

Value:Vinca alkaloid

Antineoplastic agent classification

usageNCI
2023

Common uses

Value:Treatment of acute lymphoblastic leukemia, Hodgkin's lymphoma, non-Hodgkin's lymphoma, rhabdomyosarcoma, neuroblastoma, and Wilms' tumor

Common therapeutic uses in oncology

mechanismPubChem
2023

Mechanism of action

Value:Binds to tubulin and inhibits microtubule assembly, preventing cell division (mitosis)

Pharmacological mechanism

Vincristine is indicated for the treatment of acute lymphoblastic leukemia (ALL) in children and adults, Hodgkin lymphoma, non-Hodgkin lymphoma, rhabdomyosarcoma, neuroblastoma, Wilms tumor, and various other solid tumors and hematologic malignancies. It is frequently included in combination chemotherapy regimens.

Vincristine binds to tubulin dimers in cancer cells, preventing their polymerization into microtubules. This disruption of microtubule function inhibits the formation of the mitotic spindle, arresting cells in metaphase and preventing cell division. Cancer cells are particularly susceptible due to their high proliferation rates.

Vincristine is administered exclusively by intravenous injection and must be given by trained healthcare professionals. Neurotoxicity is the most significant adverse effect, potentially causing peripheral neuropathy, constipation, and autonomic dysfunction. It is a vesicant and can cause severe tissue damage if extravasated. Liver function and blood counts should be monitored during treatment. Vincristine has numerous drug interactions and should be used with caution in patients with pre-existing neurological conditions.

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