Substance guides

Medications used in alcohol detox

Published March 15, 2025 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Alcohol detox medications prevent seizures, manage symptoms, and correct nutritional deficiencies caused by chronic drinking.

Benzodiazepines (primary treatment)

Chlordiazepoxide (Librium), diazepam (Valium), or lorazepam (Ativan). Prevent seizures and manage anxiety, tremors, and agitation. Symptom-triggered dosing (CIWA protocol) adjusts medication based on withdrawal severity.

Anticonvulsants

Carbamazepine or gabapentin may be used as alternatives or adjuncts to benzodiazepines. Gabapentin shows promise for mild-moderate withdrawal.

Nutritional support

Thiamine (B1) IV or IM, preventing Wernicke-Korsakoff syndrome. Folate replacement. Magnesium supplementation. Multivitamin. Critical: thiamine must be given BEFORE glucose to prevent precipitating Wernicke encephalopathy.

Comfort medications

Anti-nausea (ondansetron). Anti-diarrheal. Sleep support (trazodone). Blood pressure management (clonidine). Pain management (acetaminophen, avoiding NSAIDs if liver compromise).

Authoritative sources

This article references guidelines from: NIDA · SAMHSA · CDC

Frequently asked questions

What medications are used for alcohol detox?

Benzodiazepines (primary), thiamine and nutritional supplements, and comfort medications for specific symptoms.

Why do they give benzos for alcohol withdrawal?

Benzodiazepines prevent seizures by replacing alcohol's effect on GABA receptors during withdrawal.

Is medication-assisted alcohol detox safe?

Yes. Medical detox with appropriate medications is far safer than unmedicated alcohol withdrawal.

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