Family medicine

Insomnia

The INESSS outil of 2 Oct 2026 is a usage-optimal tool for a first benzodiazepine prescription, not a GUO or a PMN. It does not apply to someone already taking a benzodiazepine.

Treat

Open the outil PDF for molecule choice and the milligram tables (annex III).

  • INESSS Institut national d'excellence en santé et services sociaux
DecisionGuideline
Scope
Who
Adults not currently taking a benzodiazepine, when considering a first benzodiazepine prescription for insomnia or an anxiety disorder.

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Exclusions
Does not apply to:pregnancy or breastfeeding; already on a benzodiazepine; critical care; palliative or end-of-life care; alcohol withdrawal; peri-procedural very short use; an acute psychiatric episode that needs a hospital stay.

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First-line
Insomnia
First-line for insomnia: interventions based on cognitive-behavioural approaches for insomnia (CBT-I).

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Severe symptoms
A rapid-acting anxiolytic or sedative-hypnotic may be considered for a short duration, as an add-on to first-line treatment, when symptoms are severe (major impairment of social, work, or family function, or significant psychological distress).

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Maintenance
Do not use a benzodiazepine as first-line maintenance treatment for insomnia.

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If a benzodiazepine is chosen
Stewardship
Shared decision. Choose the molecule and the dose appropriately. Prescribe the shortest possible duration (max. 4 weeks). Prefer PRN only. Plan the end of treatment from the first prescription. Avoid systematic renewals.

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Continue
Continue first-line treatments even if a benzodiazepine is started.

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Doses
Molecule selection, starting milligrams, and the annex III sedative-hypnotic table: open the outil PDF. Check the live RAMQ Liste for coverage.

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Discouraged start
Situations
Benzodiazepine initiation is discouraged if: close follow-up is not possible; geriatric profile; high fall risk; untreated OSA-hypopnea; severe respiratory conditions; taking opioids; neurocognitive disorder; myasthenia gravis; angle-closure glaucoma; tasks that need mental alertness or fine motor coordination (for example driving); current or past dependence, abuse, or substance use disorder.

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Combinations
Avoid combining a benzodiazepine, Z-drugs, and opioids (deep sedation, respiratory depression, coma, death). If absolutely necessary: minimize dose and duration, and monitor closely.

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Vulnerability
Adverse effects
Higher adverse-effect risk: advanced age; respiratory comorbidity; renal or hepatic insufficiency; other sedatives or CNS depressants.

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Misuse
Misuse or benzodiazepine use-disorder risk factors: current or past (or family) dependence, abuse, or substance use disorder; age 16 to 45; psychiatric comorbidity (notably anxiety disorders); traumatic life experiences.

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Already taking one
Deprescribing
This outil covers a first prescription only. It does not replace deprescribing for someone already taking a benzodiazepine. CCSMH 2019 (older adults; BZRA duration, taper, and deprescribing) and CCSMH 2024 (late-life anxiety) remain in force for those scopes.

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Follow-up

  • INESSS Institut national d'excellence en santé et services sociaux
DecisionGuideline
Follow-up
Follow up within 2 to 4 weeks after the first benzodiazepine prescription.

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Reviewed 5 October 2026 against the official sources below.

Sources