Somnolence
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Template:SignSymptom infobox | }} Somnolence (or "drowsiness", or "hypersomnia") is a state of near-sleep, a strong desire for sleep, or sleeping unusually long periods. It can refer both to a specific incidence preceding falling asleep, or a chronic condition referring to being in that state independent of a circadian rhythm. This disorder 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.
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Associated conditions
- sleep apnea, mostly due to obesity
- narcolepsy
- pharmaka
- tranquilizers
- hypnotics
- some analgesics
- some antiepileptics
- generally many other agents with impact on central nervous system in sufficient doses
- clinical depression, especially seasonal affective disorder or SAD
- increased intracranial pressure
- intracranial tumors
- stroke
- trauma to the brain
- brain edema
- any other intracranial bleeding such as due to ruptured aneurysm
- hydrocephalus
- encephalitis - (viral, bacterial or other agens)
- and many others
- Also caused by use of Antipsychotics
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