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Halofantrine

Published: July 26, 2026Updated: August 20, 2026

Halofantrine is an antimalarial medication used to treat acute malaria infections, particularly those caused by Plasmodium falciparum strains that may be resistant to other antimalarial drugs. It is administered orally and is typically reserved for treatment rather than prevention of malaria.

Quick summary

Halofantrine is an oral antimalarial drug used to treat acute malaria infections, particularly drug-resistant Plasmodium falciparum malaria.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ATC
P01BX01
RxNorm
50749
Generic
Halofantrine
Class
atc-p01
Brands
—
Availability
rx
Lactation
unknown
Routes
oral
Forms
tablet
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

8 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

second 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 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.

✗

lactation

breastfeeding
unsafe
FDA Category
C
Dose Adjustment

discontinue breastfeeding

Key Recommendations

avoid use while breastfeeding due to excretion in breast milk

Monitor

monitor infant for adverse effects

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

⚠

pediatric_age

pediatric
caution
FDA Category
C
Dose Adjustment

weight-based dosing required

Key Recommendations

use under close medical supervision with ECG monitoring

Monitor

cardiac monitoring required due to QT prolongation risk

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly
caution
FDA Category
C
Dose Adjustment

reduce dose and monitor closely

Key Recommendations

use with caution due to increased cardiac sensitivity

Monitor

baseline and serial ECG monitoring required

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild to moderate
caution
FDA Category
C
Dose Adjustment

no adjustment needed for mild to moderate impairment

Key Recommendations

use with caution and monitor renal function

Monitor

monitor renal function tests

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild to moderate
caution
FDA Category
C
Dose Adjustment

reduce dose in moderate impairment

Key Recommendations

use with caution and monitor liver function

Monitor

monitor liver function tests and ECG

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1990s

Halofantrine was approved and marketed from the early 1990s

drug_classWHO
2023

Drug class

Value:Antimalarial (Phenanthrene)

Halofantrine belongs to the phenanthrene class of antimalarial drugs

usageMedical guidelines
2023

Common uses

Value:Treatment of uncomplicated Plasmodium falciparum malaria

Primary therapeutic indication for halofantrine

safetyFDA
2023

Safety concerns

Value:Cardiotoxicity (QT prolongation)

Major safety issue leading to market withdrawal

Treatment of acute uncomplicated malaria caused by Plasmodium falciparum and Plasmodium vivax. It is particularly considered when other standard antimalarial treatments are not suitable or effective.

Halofantrine is a schizonticidal agent that accumulates within the malaria parasite and is thought to interfere with the parasite's digestion of hemoglobin in red blood cells, leading to the parasite's death.

Halofantrine should be taken with food to enhance absorption. It is contraindicated in patients with known cardiac conditions or those taking medications that prolong the QT interval due to risk of cardiotoxicity. It is not recommended for malaria prophylaxis or in patients with renal or hepatic impairment.

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 20, 2026. · Read our editorial policy