Trazodone for Sleep Maintenance in SSRI-Induced Insomnia
The American Academy of Sleep Medicine explicitly recommends against using trazodone for sleep maintenance insomnia, as it provides clinically insignificant benefit while causing adverse effects in 75% of patients. 1, 2 For this patient experiencing sertraline-induced insomnia, switching sertraline to evening dosing or adding a guideline-supported sleep medication would be more appropriate than trazodone.
Why Trazodone Is Not Recommended
Lack of Clinical Efficacy
- Trazodone 50 mg reduces wake after sleep onset by only 7.7 minutes compared to placebo—below the threshold for clinical significance 1, 2
- Total sleep time increases by only 21.8 minutes, which is clinically insignificant 1, 2
- The number of awakenings decreases by only 0.4 (threshold is 0.5 for significance) 1, 2
- Sleep quality shows no significant improvement versus placebo 1
High Adverse Event Rate
- 75% of patients on trazodone experience adverse events versus 65.4% on placebo 1, 3
- Headaches occur in 30% (versus 19% placebo) 2, 3
- Daytime somnolence affects 23% (versus 8% placebo) 2, 3
- Additional risks include orthostatic hypotension, falls, dizziness, and cognitive impairment 3, 4
Evidence-Based Alternatives
First-Line Pharmacologic Options for Sleep Maintenance
For nocturnal awakenings specifically, consider these guideline-supported medications: 2
- Doxepin 3-6 mg at bedtime (particularly suitable for sleep maintenance with favorable side effect profile at low doses) 2
- Suvorexant 10-20 mg at bedtime 2, 3
- Eszopiclone 2-3 mg at bedtime 2
- Temazepam 15 mg at bedtime 2
- Zolpidem 10 mg at bedtime 2
Non-Pharmacologic Approach
- Cognitive behavioral therapy for insomnia (CBT-I) should be considered as initial treatment per major guidelines 3
Sertraline Timing Adjustment
- Before adding another medication, consider moving sertraline 50 mg to evening dosing, as this may reduce activating effects that interfere with sleep maintenance
- This approach avoids polypharmacy and its associated risks 3
Important Clinical Caveats
Common Pitfall: Dose Escalation
- Do not increase trazodone dose beyond 50 mg for insomnia—higher doses lack guideline support and increase adverse event risk 3
- The 50 mg dose studied is already ineffective; higher doses do not improve efficacy for insomnia 1, 3
Medications to Avoid
- Benzodiazepines: Risk of dependency, falls, cognitive impairment, and respiratory depression 3
- Antihistamines: Tolerance develops after 3-4 days; strong recommendation against use in older adults per Beers Criteria 3
- Antipsychotics (quetiapine): Sparse evidence with serious harms including increased mortality risk 3
Special Population Considerations
- In elderly patients, trazodone carries increased risks of orthostatic hypotension, falls, and daytime drowsiness 2, 3
- Cardiovascular monitoring is required if trazodone is used in patients with cardiac conditions 3
Nuance in the Evidence
While some research suggests trazodone may be "very effective" for sleep maintenance in patients with comorbid mental disorders 5, and meta-analyses show it increases deep sleep 6, these findings conflict with the high-quality guideline evidence. The American Academy of Sleep Medicine's 2017 guideline 1 represents the most authoritative source and explicitly states that harms potentially outweigh benefits based on the single well-designed trial available. The guideline's weak recommendation against trazodone is based on moderate-quality evidence showing no clinically significant improvements in any sleep outcome variable 1.
The clinical decision is clear: use guideline-supported medications (particularly doxepin 3-6 mg for sleep maintenance) rather than trazodone, which lacks evidence of meaningful benefit for this indication. 1, 2