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Drug-induced catatonia.

N Herrmann1, S J Lieff

  • 1Baycrest Hospital, Department of Psychiatry, Toronto, Ontario.

Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie
|October 1, 1988
PubMed
Summary
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An elderly patient developed catatonic symptoms when treated with phenelzine and haloperidol. Discontinuing all medications is recommended for suspected drug-induced catatonia.

Area of Science:

  • Psychiatry
  • Clinical Pharmacology

Background:

  • Monoamine oxidase inhibitors (MAOIs) like phenelzine are used for depression.
  • Neuroleptics such as haloperidol are used to manage psychosis.
  • Concurrent use of these drug classes requires careful monitoring.

Observation:

  • An 81-year-old female patient experienced catatonic-like behaviors.
  • These symptoms emerged during treatment with a combination of phenelzine and haloperidol.

Findings:

  • The combination of phenelzine and haloperidol may precipitate catatonic symptoms.
  • Alternative causes for the observed behaviors were considered and ruled out.
  • The specific contribution of each agent to the catatonia was evaluated.

Implications:

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  • Clinicians should consider drug-induced catatonia in patients presenting with these symptoms.
  • Discontinuation of all suspect medications is advised when drug-induced catatonia is suspected.
  • This case highlights the importance of vigilant medication management in elderly psychiatric patients.