Substance guides

How long does it take to detox from alcohol?

Published May 12, 2025 · 6 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Alcohol detox duration depends on drinking severity, history of withdrawal, and individual health factors.

Mild withdrawal

Duration: 3-5 days. Symptoms: anxiety, insomnia, tremors, sweating. Usually manageable with monitoring and comfort measures. Medical supervision recommended but outpatient may be appropriate.

Moderate withdrawal

Duration: 5-7 days. Symptoms: intensified anxiety, tremors, elevated vital signs, possible hallucinations. Medical detox recommended. Benzodiazepine protocol likely needed.

Severe withdrawal / DTs

Duration: 7-14 days. Symptoms: delirium, seizures, severe autonomic instability. ICU-level care may be needed. Mortality risk without treatment.

Factors affecting duration

Amount and duration of drinking. Previous withdrawal episodes (kindling). Age. Liver function. Co-occurring medical conditions. Concurrent benzodiazepine use.

Authoritative sources

This article references guidelines from: NIDA · SAMHSA · CDC

Frequently asked questions

How long does alcohol detox take?

3-7 days for most people. Severe withdrawal may take 7-14 days. Individual factors affect duration.

Can I detox from alcohol at home?

Only for mild withdrawal with monitoring. Moderate to severe withdrawal requires medical supervision.

When is the worst day of alcohol withdrawal?

Days 2-3 are typically the worst, with seizure risk peaking at 24-48 hours.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.