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Idebenone

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

Idebenone is a synthetic antioxidant and coenzyme Q10 analog used primarily to treat Friedreich's ataxia and Leber's hereditary optic neuropathy. It works by improving mitochondrial function and protecting cells from oxidative damage. This medication is typically prescribed for patients with specific genetic mitochondrial disorders.

Quick summary

Idebenone is an antioxidant medication used to treat genetic mitochondrial disorders like Friedreich's ataxia and Leber's hereditary optic neuropathy.

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

Key facts at a glance

ATC
N06BX13
RxNorm
51296
Generic
Idebenone
Class
atc-n06
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: Dose at which serious adverse effects are likely to occur based on limited clinical data
Chronic overdose: Cumulative daily doses exceeding 900 mg may lead to liver enzyme elevation and gastrointestinal disturbances
Immediate actions
Gastric decontamination if ingestion within 1-2 hours, supportive care, monitoring of liver function
Antidote
No specific antidote established(Supportive care is primary treatment; no specific antidote available)
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

second trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

use only if clearly needed and benefits outweigh risks

Monitor

fetal growth monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

discontinue before delivery if possible

Monitor

fetal monitoring and contraction monitoring

Use with caution and monitor for adverse effects.

✗

lactation

breastfeeding
unsafe
FDA Category
N
Dose Adjustment

discontinue breastfeeding

Key Recommendations

idebenone may be excreted in breast milk; breastfeeding mothers should avoid use

Monitor

infant monitoring if exposure occurs

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

?

pediatric_age

children under 2 years
unknown
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

safety and efficacy not established in children under 2 years

Monitor

no established monitoring parameters

⚠

pediatric_age

children 2 to 12 years
caution
FDA Category
N
Dose Adjustment

weight-based dosing if used

Key Recommendations

use only under close medical supervision for approved indications

Monitor

regular pediatric assessments

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly 65 and older
caution
FDA Category
N
Dose Adjustment

start with lower dose

Key Recommendations

use with caution due to increased sensitivity; monitor for cardiovascular effects

Monitor

regular cardiac monitoring, blood pressure checks

Use with caution and monitor for adverse effects.

✓

renal_impairment

mild renal impairment
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no significant dose adjustment required for mild impairment

Monitor

standard monitoring

⚠

renal_impairment

severe renal impairment
caution
FDA Category
N
Dose Adjustment

reduce dose by 25-50%

Key Recommendations

use with caution; dose reduction recommended due to decreased clearance

Monitor

renal function monitoring, drug levels if available

Use with caution and monitor for adverse effects.

✓

hepatic_impairment

mild hepatic impairment
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

no significant dose adjustment required for mild impairment

Monitor

standard monitoring

⚠

hepatic_impairment

moderate hepatic impairment
caution
FDA Category
N
Dose Adjustment

reduce dose by 25%

Key Recommendations

use with caution; monitor liver function tests

Monitor

regular liver function tests

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe hepatic impairment
caution
FDA Category
N
Dose Adjustment

reduce dose by 50%

Key Recommendations

use only if benefits outweigh risks; close monitoring required

Monitor

frequent liver function tests, drug level monitoring if available

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1990s

General prescribing information

drug_classWHO
2023

Drug class

Value:Coenzyme Q10 analog

Drug class information

usageMedical guidelines
2023

Common uses

Value:Neurological disorders, antioxidant therapy

Common therapeutic uses

mechanismPubChem
2023

Primary mechanism

Value:Electron transport chain support

Mechanism of action information

Idebenone is primarily used to treat Friedreich's ataxia (a rare genetic disorder causing progressive nerve damage) and Leber's hereditary optic neuropathy (a hereditary form of vision loss). It may also be used off-label for certain cognitive disorders and has been studied for potential benefits in Alzheimer's disease and other conditions involving mitochondrial dysfunction.

Idebenone acts as an electron carrier in the mitochondrial electron transport chain, similar to coenzyme Q10. It helps improve cellular energy production and has potent antioxidant properties that protect cells, particularly nerve cells and retinal cells, from oxidative damage and mitochondrial dysfunction.

Idebenone may cause side effects such as nausea, stomach upset, and headache. Patients with known hypersensitivity should avoid this medication. Treatment should be supervised by a specialist familiar with the specific condition being treated. Regular monitoring of liver function may be recommended during therapy.

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