Management of Alcohol Withdrawal Syndrome

Initial Treatment

The American College of Cardiology is not mentioned, however, the recommended initial dose of chlordiazepoxide for alcohol withdrawal syndrome is 25-100 mg orally every 4-6 hours, with doses tapered as symptoms resolve, while ensuring all patients receive thiamine 100-300 mg/day to prevent Wernicke encephalopathy 1
For mild to moderate withdrawal, start with chlordiazepoxide 25-50 mg orally every 6 hours on the first day 2
For moderate to severe withdrawal, start with 50-100 mg orally every 4-6 hours 3, 1

Use the Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar) scale to guide treatment: scores >8 indicate moderate withdrawal requiring treatment, and scores ≥15 indicate severe withdrawal 2, 1
Symptom-triggered regimens are preferred over fixed-dose schedules to prevent medication accumulation 2, 1
Monitor vital signs, mental status, and withdrawal symptoms closely, especially in the first 72 hours 1
Note that CIWA is helpful for severity assessment and treatment planning but should not be used alone for diagnosis, as high scores can occur in other conditions like sepsis, hepatic encephalopathy, or anxiety disorders 4

Limit benzodiazepine treatment to 10-14 days maximum to avoid dependence and abuse potential 5, 1

Thiamine administration is mandatory, with a dose of 100-300 mg/day for all patients with alcohol withdrawal 4, 2, 1
Administer thiamine BEFORE giving any glucose-containing IV fluids, as glucose can precipitate acute Wernicke encephalopathy 2, 1
Continue thiamine for 2-3 months following resolution of withdrawal symptoms 4, 1

Avoid chlordiazepoxide in patients with liver dysfunction or hepatic insufficiency, advanced age, or respiratory compromise 2
For these patients, use lorazepam 1-4 mg every 4-8 hours instead, as it undergoes glucuronidation rather than hepatic oxidation and has no active metabolites 2

Admit for inpatient treatment if significant alcohol withdrawal syndrome is present, history of withdrawal seizures or delirium tremens, serious medical or psychiatric comorbidities, failed outpatient treatment, or high levels of recent drinking 4, 2
Outpatient treatment is more cost-effective for mild withdrawal without these risk factors, with no difference in 6-month abstinence rates 4

For agitation or hallucinations not controlled by benzodiazepines alone, use haloperidol 0.5-5 mg orally every 8-12 hours or 2-5 mg IM as adjunctive therapy only 2, 1
For seizure prevention (alternative to benzodiazepines), use carbamazepine 200 mg orally every 6-8 hours 2, 1

Psychiatric consultation is recommended for evaluation, acute management, and long-term abstinence planning 4, 2, 1

Inadequate dosing may lead to breakthrough symptoms including seizures and delirium tremens, which typically peak at 3-5 days after cessation 4, 5
Excessive dosing can cause respiratory depression, especially in patients with underlying pulmonary conditions 5
Extending treatment beyond 10-14 days increases risk of benzodiazepine dependence 5, 1
Giving glucose before thiamine can precipitate acute Wernicke encephalopathy 2, 1
Using CIWA for diagnosis is not recommended, as scores can be elevated in other conditions 4