Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 8/22/2025

Trazodone Efficacy and Safety for Sleep Disorders

Efficacy for Sleep

  • The American Academy of Sleep Medicine suggests that a dose of 212 mg/day of trazodone is effective for treating insomnia and nightmares 1
  • Trazodone at a dose of 100 mg reduces the time in stage 1 sleep and increases the duration of slow-wave sleep (stages 3+4) 1
  • The American Academy of Sleep Medicine recommends that trazodone may be useful when insomnia is associated with depression 6

Safety and Adverse Effects

  • The American Academy of Sleep Medicine and the American College of Physicians note that a dose of 100 mg of trazodone is associated with a higher incidence of adverse effects, including daytime sedation and dizziness, compared to 25 mg 1, 2
  • Common adverse effects of trazodone include sedation, dizziness, dry mouth, and in rare cases, priapism, with higher doses increasing the risk of these effects 1, 2, 3

Clinical Considerations

  • The American Academy of Sleep Medicine and the American College of Physicians recommend that trazodone is not a first-line treatment for chronic insomnia, with non-benzodiazepine hypnotics like zolpidem and eszopiclone generally preferred when pharmacological therapy is necessary 2, 4, 5, 6
  • Trazodone shows a reduction of only 10 minutes in sleep latency and 8 minutes in wake time after sleep onset compared to placebo 4