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Nevirapine

Published: July 26, 2026Updated: July 26, 2026

Nevirapine is an antiretroviral medication classified as a non-nucleoside reverse transcriptase inhibitor (NNRTI) used in the treatment of HIV-1 infection. It works by inhibiting the reverse transcriptase enzyme, which is essential for the replication of the virus. This medication is typically used in combination with other antiretroviral drugs as part of combination therapy.

Quick summary

Nevirapine is an HIV medication that inhibits viral replication by blocking the reverse transcriptase enzyme.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 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
J05AG01
RxNorm
53654
Generic
Nevirapine
Class
atc-j05
Brands
Viramune
Availability
rx
Lactation
unknown
Routes
oral
Forms
tablet, suspension
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
200mg once daily for 14 days, then 200mg twice daily
Maximum
consult physician
Frequency
every 12 hours (after lead-in)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
150mg/m² once daily for 14 days, then 150mg/m² twice daily
Maximum
consult physician
Frequency
every 12 hours (after lead-in)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
200mg once daily for 14 days, then 200mg twice daily
Maximum
consult physician
Frequency
every 12 hours (after lead-in)
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose that may cause serious toxicity - significantly exceeds therapeutic 200mg daily dose
Chronic overdose: Prolonged exposure above 400mg daily may lead to cumulative hepatotoxicity and skin reactions
Immediate actions
Supportive care, gastric lavage if within 1-2 hours of ingestion, activated charcoal may be considered, monitor liver function
Antidote
No specific antidote available(Supportive care is mainstay of treatment)
Poison Control: 1-800-222-1222

Special Populations

7 groups
✗

pregnancy

first trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks; nevirapine should not be initiated in pregnant women due to increased risk of hepatotoxicity

Monitor

regular fetal monitoring and liver function tests

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

⚠

pregnancy

second third trimester
caution
FDA Category
C
Dose Adjustment

use with caution

Key Recommendations

if already on nevirapine, may continue with close monitoring; do not initiate new therapy

Monitor

frequent liver function monitoring every 2-4 weeks

Use with caution and monitor for adverse effects.

✗

lactation

breastfeeding
contraindicated
FDA Category
C
Dose Adjustment

not recommended

Key Recommendations

HIV-infected mothers should not breastfeed to prevent vertical transmission; nevirapine is excreted in breast milk

Monitor

not applicable

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

✓

pediatric_age

children 3 months to 18 years
safe
FDA Category
B
Dose Adjustment

weight-based dosing required

Key Recommendations

use pediatric suspension formulation; initiate with lead-in dose period; approved for use in children 3 months and older

Monitor

monitor liver function tests frequently during first 12 weeks of therapy

⚠

geriatric

elderly 65 years and older
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

start at standard dose but monitor closely; elderly patients may have decreased hepatic function

Monitor

monitor liver function tests more frequently

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe renal impairment
caution
FDA Category
N
Dose Adjustment

no significant dose adjustment required

Key Recommendations

use with caution; nevirapine is not significantly renally excreted; monitor for adverse effects

Monitor

monitor renal function and for signs of toxicity

Use with caution and monitor for adverse effects.

✗

hepatic_impairment

moderate to severe hepatic impairment
contraindicated
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

contraindicated in severe hepatic impairment; use with caution in moderate impairment

Monitor

frequent liver function monitoring if used in moderate impairment

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

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:1996

FDA approval timeline for Nevirapine

drug_classWHO
2023

Drug class

Value:NNRTI (Non-nucleoside reverse transcriptase inhibitor)

Antiretroviral drug classification

usageMedical guidelines
2023

Primary indications

Value:HIV-1 infection treatment and prevention of mother-to-child transmission

Therapeutic indications for Nevirapine

mechanismFDA
2023

Mechanism of action

Value:Non-competitive reverse transcriptase inhibitor

Pharmacological mechanism of action

Treatment of HIV-1 infection in combination with other antiretroviral agents, used in both adults and pediatric patients (including newborn infants from mothers with HIV).

Nevirapine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) that binds directly to reverse transcriptase and blocks the RNA-dependent and DNA-dependent DNA polymerase activities, preventing viral replication.

Requires dose escalation over the first 14 days to reduce risk of rash. Hepatotoxicity is a serious concern—liver function should be monitored regularly, especially during the first 18 weeks. Should not be used as monotherapy. Common side effects include rash, fever, and fatigue. May cause severe skin reactions including Stevens-Johnson syndrome.

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 26, 2026. · Read our editorial policy