Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/7/2025

Management of Alcohol Withdrawal Syndrome with Haloperidol

Indications and Usage

  • The American Society of Addiction Medicine recommends haloperidol as an adjunct therapy to benzodiazepines for patients with severe agitation or psychotic symptoms (such as hallucinations) that are not adequately controlled by benzodiazepines alone, with a limited and specific role in treatment 1
  • Haloperidol is indicated for refractory psychomotor agitation, where the patient remains agitated despite adequate doses of benzodiazepines, and for psychotic symptoms, specifically to control hallucinations that persist despite benzodiazepine treatment 1

Dosage and Administration

  • The recommended dosage of haloperidol is 0.5-5 mg orally every 8-12 hours, or 2-5 mg intramuscularly, as an adjunct to benzodiazepines 1

Treatment Approach

  • The initial treatment approach should always start with benzodiazepines (such as diazepam, lorazepam, or chlordiazepoxide) in adequate doses, with haloperidol considered as an adjunct only if the patient exhibits severe agitation or psychotic symptoms despite benzodiazepine treatment 1
  • The American College of Clinical Pharmacology suggests optimizing benzodiazepine doses or frequency as the first strategy for managing psychotic symptoms or agitation in alcohol withdrawal, with haloperidol added only if necessary 1