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hallucination

Perception of an external stimulus when no external stimulus is present. Etiology: 1) schizophrenia 2) pharmacologic causes: a) amantadine b) beta blockers - timolol* c) levodopa e) narcotics 1] meperidine 2] pentazocine f) tricyclic antidepressants g) hallucinogens a) lysergic acid diethylamide (LSD) b) phencyclidine c) psilocybin (magic mushroom) h) donepezil* 3) neurodegenerative disease - Parkinson's disease - Lewy body dementia - late-stage Alzheimer's disease 4) visual release hallucinations in patients with severe vision loss - Charles Bonnet syndrome * most recently started potentially offending medication most likely Management: 1) discontinue offending pharmaceutical agents if possible 2) antipsychotic agents

Related

delusion psychosis synesthesia

Specific

auditory hallucination hallucinations associated with Parkinson's disease olfactory hallucination (phantosmia) visual hallucination

General

sign/symptom

References

  1. Harrison's Principles of Internal Medicine, 13th ed. Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 137, 411
  2. Sinert RO Fast Five Quiz: Psilocybin and Other Hallucinogenic Drugs. Medscape. September 07, 2021 https://reference.medscape.com/viewarticle/957547