Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/24/2025

Insomnia Treatment Guidelines

Introduction to Insomnia Treatment

  • The American Academy of Sleep Medicine explicitly states that over-the-counter antihistamine sleeping aids (including promethazine) are not recommended due to lack of demonstrated efficacy and safety concerns 1, 2, 3
  • Evidence for antihistamine efficacy and safety is "very limited, with very few available studies from the past 10 years using contemporary study designs and outcomes" 1, 2

First-Line Treatment for Insomnia

  • Cognitive Behavioral Therapy for Insomnia (CBT-I) is the standard of care and should be offered before or alongside any pharmacotherapy 3, 4, 5, 6
  • The American Academy of Sleep Medicine recommends CBT-I as the first-line treatment for insomnia 3, 4

Appropriate Pharmacotherapy for Insomnia

  • For sleep onset difficulty, short-acting benzodiazepine receptor agonists (BzRAs): zaleplon, zolpidem, are recommended 7
  • For sleep onset difficulty, ramelteon (melatonin receptor agonist) is a suitable option, particularly for patients with substance use history 7, 6
  • For sleep maintenance difficulty, low-dose doxepin (3-6 mg) is recommended due to its improved sleep efficiency and favorable safety profile in older adults 5, 6
  • For sleep maintenance difficulty, eszopiclone or temazepam (longer half-lives) may be considered 7
  • Sedating antidepressants: trazodone, mirtazapine, low-dose doxepin, are recommended as second-line options for patients with comorbid depression or anxiety 7, 6

Critical Prescribing Principles for Insomnia Treatment

  • The American Academy of Sleep Medicine recommends using the lowest effective dose and shortest possible duration for insomnia treatment 1, 5, 6
  • Patient education on treatment goals, safety concerns, and potential side effects is crucial 7, 6
  • Regular follow-up to assess efficacy and monitor for adverse effects is necessary 6
  • Gradual tapering when discontinuing insomnia treatment is recommended to minimize rebound insomnia 1

REFERENCES

1

clinical guideline for the evaluation and management of chronic insomnia in adults. [LINK]

Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2008

2

clinical guideline for the evaluation and management of chronic insomnia in adults. [LINK]

Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2008

3

clinical practice guideline for the pharmacologic treatment of chronic insomnia in adults: an american academy of sleep medicine clinical practice guideline. [LINK]

Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2017

4

clinical practice guideline for the pharmacologic treatment of chronic insomnia in adults: an american academy of sleep medicine clinical practice guideline. [LINK]

Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2017

6

Non-Scheduled Drugs for Managing Insomnia [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

7

clinical guideline for the evaluation and management of chronic insomnia in adults. [LINK]

Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2008