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Related Experiment Videos

Suvorexant: scientifically interesting, utility uncertain.

Nicholas A Keks1, Judy Hope2, Simone Keogh3

  • 1Professor & Director, Monash Medical Centre and Centre for Mental Health Education and Research at Delmont Private Hospital, Monash University, Melbourne, VIC, Australia.

Australasian Psychiatry : Bulletin of Royal Australian and New Zealand College of Psychiatrists
|October 11, 2017
PubMed
Summary

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Suvorexant is a new hypnotic drug that helps with sleep onset and maintenance. While effective, its benefits are moderate, and it may cause side effects like next-day drowsiness.

Area of Science:

  • Pharmacology
  • Sleep Medicine

Background:

  • Suvorexant is a novel dual orexin receptor antagonist.
  • Orexin signaling promotes wakefulness; its blockade by suvorexant facilitates sleep.

Purpose of the Study:

  • To review the efficacy and safety of suvorexant for insomnia treatment.
  • To discuss suvorexant's pharmacokinetic profile and potential drug interactions.

Main Methods:

  • Review of existing clinical trial data and pharmacokinetic studies.
  • Analysis of suvorexant's effects on sleep onset, maintenance, and adverse events.

Main Results:

  • Suvorexant (15-20 mg) offers moderate benefits, reducing sleep onset time by 6 minutes and increasing sleep duration by 16 minutes.
  • Higher doses (40 mg) show greater efficacy but increased side effects, including next-day somnolence.
Keywords:
hypnoticinsomniaorexin receptor antagonistsleep maintenancesuvorexant

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  • Adverse events include somnolence, fatigue, xerostomia, and rarely, hallucinations or sleep paralysis.

    • Conclusions:

    • Suvorexant's long-term utility, especially in psychiatric populations, requires further investigation.
    • Comparative trials against other hypnotics are lacking, and cost is a consideration.
    • Suvorexant may be a viable option when established insomnia treatments are unsuitable.