Pharmacological management of psychosis in elderly patients with parkinsonism.
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.
Hasnain
Mehrul
M
Department of Psychiatry, Western Regional Integrated Health Authority, Sir Thomas Roddick Hospital, Stephenville, Newfoundland, Canada. mehrul_hasnain@yahoo.com
Vieweg
W Victor R
WV
Baron
Mark S
MS
Beatty-Brooks
Mary
M
Fernandez
Antony
A
Pandurangi
Anand K
AK
D000368:Aged; D000978:Antiparkinson Agents / Q000009:adverse effects*; D014150:Antipsychotic Agents / Q000009:adverse effects*; D006801:Humans; D020734:Parkinsonian Disorders / Q000150:complications* / Q000188:drug therapy / Q000503:physiopathology; D011618:Psychotic Disorders / Q000150:complications* / Q000188:drug therapy / Q000503:physiopathology
D000978:Antiparkinson Agents; D014150:Antipsychotic Agents