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Akathisia, suicidality, and fluoxetine.
1Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York.
The Journal of Clinical Psychiatry
|November 1, 1992
Summary
Fluoxetine may cause suicidal thoughts through drug-induced akathisia, a movement disorder. This extrapyramidal reaction, linked to serotonin activity, can manifest as dysphoria and suicidal ideation.
Area of Science:
- Neuroscience
- Psychopharmacology
- Movement Disorders
Background:
- The link between fluoxetine and suicidal ideation is explored.
- Fluoxetine-induced akathisia and dysphoric extrapyramidal reactions are proposed as key mechanisms.
Purpose of the Study:
- To investigate the potential link between fluoxetine and suicidal ideation.
- To propose a novel syndrome and theoretical model explaining this association.
Main Methods:
- Literature review encompassing schizophrenic patients' response to akathisia.
- Analysis of subjective reports from patients taking fluoxetine.
- Examination of preclinical studies on serotonin's role in the extrapyramidal system.
Main Results:
- Evidence suggests fluoxetine-induced extrapyramidal reactions may mediate new-onset suicidal ideation.
- Akathisia in schizophrenic patients is linked to suicidal ideation.
Conclusions:
- A syndrome, Extrapyramidal-Induced Dysphoric Reactions, is proposed, with suicidal ideation as a severe manifestation.
- A "Four Neuron Model of the Extrapyramidal Motor System" is introduced, explaining how increased serotonin can induce extrapyramidal side effects.