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Alcohol-use disorders: screening, withdrawal pathways, and relapse prevention

A Canadian clinical summary of alcohol-use disorders: screening, withdrawal pathways, and relapse prevention, with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 due 2027-08-20
AudienceHealthcare professionals practising in Canada
This is an iatroX educational summary of named Canada sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. Ontario is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient鈥檚 province or territory.

Ontario source: bounded use

Alcohol use: clinical resources for health professionals supplies a Canadian implementation example for this summary. It must not be presented as the rule outside Ontario.
sources for this section:CAMH alcohol

Source-attributed clinical priorities

  • Screen consumption and consequences, then assess withdrawal risk, medical complications, other substance use and immediate safety.
  • Use a medically supervised withdrawal pathway when seizure, delirium or severe-withdrawal risk is present.
  • Offer evidence-based psychosocial and pharmacologic relapse-prevention options with longitudinal follow-up and harm-reduction goals.
  • Calculate standard drinks accurately and ask about morning use, loss of control and prior withdrawal seizures or delirium.
sources for this section:CAMH alcohol

Practical assessment and management workflow

1
Assess last drink, typical and maximum intake, withdrawal history, liver and mental health, pregnancy and other substances.
2
Use a validated withdrawal assessment only in a setting where repeated observation and treatment are available.
3
Select outpatient or inpatient withdrawal based on medical, psychiatric and social risk.
4
After withdrawal, offer relapse-prevention medication, psychosocial care and harm-reduction or abstinence goals with follow-up.
sources for this section:CAMH alcohol

Safety, red flags and urgent escalation

  • Hallucinations, seizure, delirium, autonomic instability or severe vomiting requires emergency withdrawal management.
  • Give thiamine promptly when nutritional deficiency or Wernicke encephalopathy is possible.
  • Avoid unsupervised abrupt cessation in a person with high physiologic dependence and previous complicated withdrawal.
sources for this section:CAMH alcohol

Confirm the local pathway before acting

Ontario is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient鈥檚 province or territory.
sources for this section:CAMH alcohol

Source and implementation boundary

Read this educational summary with the linked source, current Canadian product information where medicines are involved, and the applicable provincial or territorial pathway. Local formularies, reporting duties, referral routes and service availability can differ.
sources for this section:CAMH alcohol

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. Centre for Addiction and Mental HealthAlcohol use: clinical resources for health professionalsaccessed 2026-08-20
    view source
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