Management of Alcohol Withdrawal
Benzodiazepines are the gold standard first-line treatment for alcohol withdrawal syndrome, with long-acting agents (diazepam or chlordiazepoxide) preferred for most patients to prevent seizures and delirium tremens. 1, 2, 3
Initial Assessment and Risk Stratification
- Use the CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol-Revised) score to guide treatment intensity, though it should not be used alone for diagnosis as high scores can occur in other conditions 1, 2
- Scores >8 indicate moderate AWS requiring pharmacological treatment 1, 2
- Scores ≥15 indicate severe AWS requiring aggressive management 1, 2
- Assess for risk factors requiring inpatient admission: serious medical complications, high levels of recent drinking, history of withdrawal seizures or delirium tremens, co-occurring serious medical or psychiatric illness, or failure of outpatient treatment 1, 2, 3
First-Line Pharmacological Treatment
Long-Acting Benzodiazepines (Preferred for Most Patients)
Diazepam:
- Dosing: 10 mg orally 3-4 times during the first 24 hours, then reduce to 5 mg 3-4 times daily as needed 4
- Provides superior protection against seizures and delirium tremens due to longer duration of action 2, 3
- Alternative dosing range: 2-10 mg, 2-4 times daily depending on symptom severity 4
Chlordiazepoxide:
- Dosing: 25-100 mg orally every 4-6 hours 1, 3
- Equally effective alternative to diazepam for most patients 1
Intermediate-Acting Benzodiazepines (For Special Populations)
Lorazepam is the preferred agent for patients with:
- Advanced age 1, 2, 3
- Hepatic dysfunction or liver failure 1, 2, 3
- Respiratory failure 1, 2
- Obesity 1, 2, 3
- Recent head trauma 1, 2, 3
Lorazepam dosing:
- 1-4 mg every 4-8 hours (total 6-12 mg/day initially) 2, 3
- Safer in hepatic insufficiency as it doesn't rely on hepatic oxidation 1, 3
- Recent high-quality evidence shows lorazepam and diazepam are equally efficacious for severe AWS, with lorazepam being significantly more cost-effective 5
Essential Adjunctive Therapy
Thiamine (Critical - Must Not Be Omitted)
- Administer 100-300 mg/day to ALL patients with alcohol withdrawal to prevent Wernicke encephalopathy 1, 2, 3
- ALWAYS give thiamine BEFORE any glucose-containing IV fluids to prevent precipitating acute thiamine deficiency 1, 2, 3
- Continue for 2-3 months following resolution of withdrawal symptoms 1
Alternative and Adjunctive Agents
Carbamazepine:
- 200 mg every 6-8 hours as an alternative for seizure prevention 1, 2, 3
- Can be used for mild to moderate withdrawal symptoms 6
Haloperidol:
- 0.5-5 mg every 8-12 hours ONLY as adjunctive therapy for agitation or psychotic symptoms not controlled by benzodiazepines alone 1, 2, 3
- Should never be used as monotherapy 1
Treatment Duration and Tapering
- Taper benzodiazepines following resolution of withdrawal symptoms 1, 2, 3
- Total treatment duration should NOT exceed 10-14 days to avoid benzodiazepine dependence 1, 2, 3
- Use gradual taper to discontinue; if withdrawal reactions develop, pause the taper or increase dosage temporarily 4
Supportive Care
- Provide fluids and electrolyte replacement as needed based on individual losses 1
- Ensure comfortable, quiet environment 1
- Monitor daily for up to 5 days after last drink to verify symptom improvement 6
Critical Medications to AVOID
- Disulfiram should be avoided in patients with severe alcoholic liver disease due to hepatotoxicity risk 2, 3
- Naltrexone is contraindicated in patients with alcoholic liver disease due to hepatotoxicity risk 2, 3
Coordination of Care
- Obtain psychiatric consultation for comprehensive evaluation, acute AWS management, and long-term abstinence planning 1, 2
- Coordinate care between hepatologists and addiction specialists to reduce delays in referral for alcohol dependence treatment 2
- Initiate long-term treatment for alcohol use disorder, including pharmacotherapy, in addition to withdrawal management 6
Common Pitfalls
- Do not use CIWA protocol alone for diagnosis—high scores may occur in conditions other than AWS 1, 3
- Do not delay benzodiazepine therapy in patients with moderate to severe symptoms, as complications occur more frequently with delayed treatment 7
- Do not use antipsychotics, beta-blockers, or barbiturates as first-line monotherapy 8