Cited by 103Sleep and related disordersCircadian rhythm and melatoninStress Responses and Cortisol

The sleep-improving effects of doxepin are paralleled by a normalized plasma cortisol secretion in primary insomnia

Rodenbeck, A., Cohrs, S., Jordan, W., Huether, G., R�ther, E., Hajak, G.·2003·Psychopharmacology

Abstract

Rationale In primary care, sedating antidepressants are often used for treating insomnia, although their underlying sleep-promoting mechanisms are only incompletely understood. Since enhanced evening and nocturnal plasma cortisol levels are supposed to maintain insomniac sleep complaints, a functional link between sleep and cortisol secretion in the mode of action of antidepressants in insomnia might be suspected.Objectives We therefore investigated the effects of the tricyclic antidepressant doxepin on nocturnal sleep and plasma cortisol concentration in ten patients (age 41.3+/-9.5 years) with chronic primary insomnia between 1700 hours and 0800 hours.Methods Single infusions of placebo and 25 mg doxepin were applied following a double-blind, randomized cross-over design. Afterward, all patients received 25 mg doxepin p.o. for 3 weeks in an open-study design.Results Both doxepin application forms improved sleep significantly and reduced mean cortisol levels from 9.0+/-1.7 microg/l (single placebo i.v.) to 7.5+/-1.6 microg/l (single doxepin i.v.) or 7.6+/-2.0 microg/l (subchronic doxepin p.o.). The duration of the quiescent period of the cortisol rhythm was significantly prolonged following both doxepin administrations compared with placebo.Conclusions The results implicate that the sleep-improving effects of doxepin are mediated at least in part by a normalization of hypothalamic-pituitary-adrenal axis functions. Although in some patients rebound insomnia and specific side effects must be considered, our findings give a further rationale for the use of antidepressants in the treatment of primary insomnia.

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Crossref · 10.1007/s00213-003-1565-0

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Authors
Rodenbeck, A., Cohrs, S., Jordan, W., Huether, G., R�ther, E., & Hajak, G.
Affiliations
  • University of Göttingen (DE)
  • University of Regensburg (DE)
Corresponding author
Rodenbeck, A.
Venue
Psychopharmacology
Published
2003-12-01
Volume
170
Issue
4
Pages
423-428
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W2041140667
Cited by
103
References
56
Citations by year
2026: 1 · 2025: 5 · 2024: 1 · 2022: 4 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 4 · 2017: 3 · 2016: 8 · 2015: 4 · 2014: 7 · 2013: 6 · 2012: 5
FWCI
5.73
Type
journal article
Language
en
Open access
closed
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • University of Regensburg Publication Server (University of Regensburg) (acceptedVersion)
  • GRO (submittedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
doxepin, primary insomnia, plasma cortisol, diurnal cortisol rhythm, hypothalamic-pituitary-adrenal axis, tricyclic antidepressants, sedating antidepressants, sleep improvement
MeSH terms
Adult, Antidepressive Agents, Tricyclic, Double-Blind Method, Doxepin, Female, Humans, Hydrocortisone, Sleep Initiation and Maintenance Disorders, Male, Sleep, Polysomnography, Cross-Over Studies

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