Treatment for Insomnia
Cognitive Behavioral Therapy for Insomnia (CBT-I) should be the initial treatment for all adults with chronic insomnia before considering any medication. 1, 2, 3, 4
First-Line Treatment: CBT-I
CBT-I demonstrates superior long-term efficacy compared to pharmacotherapy with minimal adverse effects and sustained benefits lasting up to 2 years. 1, 3
Core Components of CBT-I
- Sleep restriction therapy limits time in bed to consolidate sleep and increase homeostatic sleep drive 1, 3, 4
- Stimulus control therapy re-associates the bed with sleep by limiting non-sleep activities in bed 1, 3, 4
- Cognitive restructuring addresses dysfunctional beliefs and anxiety about sleep 1, 3
- Relaxation techniques reduce physiological and cognitive arousal 1, 4
- Sleep hygiene education should be combined with other therapies, as it is insufficient alone 3, 4
Delivery Methods
CBT-I can be effectively delivered through individual therapy, group sessions, telephone-based programs, web-based modules, or self-help books—all formats show effectiveness. 2
Second-Line Treatment: Pharmacotherapy
Medications should only be considered when CBT-I is unavailable, ineffective after adequate trial, or as a temporary adjunct—never as monotherapy or replacement for behavioral interventions. 2, 3, 4
First-Line Medications (When Pharmacotherapy is Necessary)
For sleep onset insomnia:
- Zolpidem 10 mg (5 mg in elderly) for both sleep onset and maintenance 2, 4, 5
- Zaleplon 10 mg specifically for sleep onset 2, 4
- Ramelteon 8 mg for sleep onset with favorable safety profile 2, 4
- Eszopiclone 2-3 mg for both onset and maintenance, with efficacy demonstrated up to 6 months 2, 6
For sleep maintenance insomnia:
- Eszopiclone 2-3 mg 2, 4
- Temazepam 15 mg (7.5 mg in elderly/debilitated) 2, 4
- Low-dose doxepin 3-6 mg specifically for maintenance 2, 4
- Suvorexant (orexin receptor antagonist) for maintenance 2
Medication Selection Algorithm
- Identify primary sleep complaint: onset difficulty versus maintenance difficulty versus both 2, 4
- Consider patient-specific factors: age, comorbidities (especially depression/anxiety), substance abuse history, fall risk 2, 4
- For substance abuse history: avoid benzodiazepines; consider ramelteon or suvorexant 2
- For comorbid depression/anxiety: consider sedating antidepressants as alternative 2
- Use lowest effective dose for shortest duration possible 2
Medications NOT Recommended
The following should be avoided due to lack of efficacy data, safety concerns, or superior alternatives:
- Over-the-counter antihistamines (diphenhydramine) cause daytime sedation, delirium risk in elderly, and lack efficacy data 2, 3, 4
- Trazodone is not recommended despite common clinical use 2, 4
- Melatonin, valerian, L-tryptophan have insufficient evidence 2, 4
- Barbiturates and chloral hydrate are obsolete with unacceptable risk profiles 2, 4
- Antipsychotics should not be first-line due to problematic metabolic side effects 2, 3
- Long-acting benzodiazepines carry increased risks without clear benefit 2
Critical Safety Considerations
All hypnotics carry significant risks that must be weighed carefully:
- Complex sleep behaviors including sleep-driving, sleep-walking 2
- Falls and fractures, particularly in elderly patients 2
- Cognitive impairment and daytime sedation 2, 5
- Dependence and withdrawal reactions with prolonged use 2
- Anterograde amnesia, especially at higher doses 5
- Driving impairment the morning after use 2
Special Considerations for Elderly Patients
- Use lower doses: zolpidem 5 mg maximum, temazepam 7.5 mg 2, 4
- Higher risk of falls, cognitive impairment, and complex sleep behaviors 2
- Avoid benzodiazepines when possible due to increased sensitivity 2
Monitoring and Follow-Up
- Follow patients every few weeks initially to assess effectiveness and side effects 4
- Reassess need for ongoing medication regularly—do not continue long-term without periodic evaluation 2, 3, 4
- Always supplement pharmacotherapy with behavioral interventions 2, 4
- If insomnia persists beyond 7-10 days of treatment, evaluate for underlying sleep disorders like sleep apnea 2
Common Pitfalls to Avoid
- Using medications as first-line treatment instead of CBT-I 2, 3
- Prescribing without concurrent behavioral therapy 2, 4
- Continuing medications indefinitely without reassessment 2, 3
- Using over-the-counter sleep aids with limited evidence 2, 3
- Failing to consider drug interactions and contraindications 2
- Not adjusting doses appropriately for elderly patients 2
- Combining multiple sedative medications, which significantly increases risks 2