Pharmacological management of psychosis in elderly patients with parkinsonism

Am J Med. 2009 Jul;122(7):614-22. doi: 10.1016/j.amjmed.2009.01.025.

Abstract

Parkinsonism is a characteristic feature of Parkinson's disease and dementia with Lewy bodies and is commonly seen in Alzheimer's disease. Psychosis commonly appears during the course of these illnesses. Treatment of parkinsonism with antiparkinsonian medications constitutes an additional risk factor for the appearance or worsening of psychosis. Conversely, treatment of psychosis with antipsychotic drugs in patients with parkinsonism might worsen the underlying movement disorder, especially in the elderly. In this article, we review parkinsonian conditions in the elderly and offer guidelines to assess and manage comorbid psychosis. We focus on the pharmacologic management of psychosis with atypical antipsychotic medications and briefly review the role of acetylcholinesterase inhibitors.

Publication types

  • Review

MeSH terms

  • Aged
  • Antiparkinson Agents / adverse effects*
  • Antipsychotic Agents / adverse effects*
  • Humans
  • Parkinsonian Disorders / complications*
  • Parkinsonian Disorders / drug therapy
  • Parkinsonian Disorders / physiopathology
  • Psychotic Disorders / complications*
  • Psychotic Disorders / drug therapy
  • Psychotic Disorders / physiopathology

Substances

  • Antiparkinson Agents
  • Antipsychotic Agents