Somnolence: Difference between revisions

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|bgcolor="Beige"| [[Loratadine]], [[Cetirizine hydrochloride]]
|bgcolor="Beige"| [[Loratadine]], [[Cetirizine hydrochloride]], [[Diphenhydramine]]
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Revision as of 02:40, 16 December 2014

For patient information, click here

Somnolence
ICD-10 R40.0
ICD-9 780.09

Template:Search infobox Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Pratik Bahekar, MBBS [2]

Overview

Somnolence (or "drowsiness") is a state of near-sleep, a strong desire for sleep, or sleeping for unusually long periods. It has two distinct meanings, referring both to the usual state preceding falling asleep, and the chronic condition referring to being in that state independent of a circadian rhythm. The disorder characterized by the latter condition is most commonly associated with users of prescription hypnotics, such as mirtazapine or zolpidem.

It is considered a lesser impairment of consciousness than stupor or coma.

Causes by Organ System

Cardiovascular No underlying causes
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect Loratadine, Cetirizine hydrochloride, Diphenhydramine
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic No underlying causes
Genetic No underlying causes
Hematologic No underlying causes
Iatrogenic No underlying causes
Infectious Disease No underlying causes
Musculoskeletal/Orthopedic No underlying causes
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes

Causes

Hazards

Somnolence can be dangerous when performing tasks that require constant concentration, such as driving a vehicle. When a person is sufficiently fatigued, he or she may experience microsleeps (loss of concentration).

See also

References

  1. Zimmermann C, Pfeiffer H (January 2007). "[Sleep disorders in depression. Suggestions for a therapeutic approach]". Nervenarzt (in German). 78 (1): 21–30. doi:10.1007/s00115-006-2111-1. PMID 16832696.
  2. Watanabe N, Omori IM, Nakagawa A; et al. (2011). "Mirtazapine versus other antidepressive agents for depression". Cochrane Database Syst Rev (12): CD006528. doi:10.1002/14651858.CD006528.pub2. PMID 22161405.
  3. "http://www.dsm5.org/Pages/Default.aspx". External link in |title= (help)

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