Substance guides

Can you drink on Antabuse? What happens and the dangers

Published September 25, 2025 · 6 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Drinking on Antabuse (disulfiram) causes a severe physical reaction that is intentionally unpleasant and can be medically dangerous.

What happens

Within 10-30 minutes of drinking: intense flushing, throbbing headache, nausea and vomiting, rapid heartbeat, difficulty breathing, sweating, and dizziness. The reaction lasts 30-60 minutes with small amounts of alcohol, longer with more.

Severity

With small amounts (a sip of wine): mild to moderate reaction. With moderate amounts: severe nausea, vomiting, and cardiovascular symptoms. With large amounts: potentially life-threatening cardiovascular collapse, respiratory depression, and seizures.

Hidden alcohol sources

Mouthwash, cooking wine, vanilla extract, certain sauces, alcohol-based hand sanitizer (absorbed through skin in large amounts), some medications. Read all labels carefully while on Antabuse.

How long the risk lasts

The disulfiram-alcohol reaction can occur up to 14 days after the last Antabuse dose.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

What happens if you drink on Antabuse?

Severe flushing, nausea, vomiting, headache, rapid heartbeat, and feeling extremely ill. Large amounts of alcohol can cause life-threatening reactions.

Can you die from drinking on Antabuse?

Rarely but yes. Large alcohol intake on Antabuse can cause cardiovascular collapse. It is a medical emergency.

How long after Antabuse can you safely drink?

At least 14 days after the last dose. Some recommend waiting 2 full weeks.

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