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Fluoxetine-induced memory impairment in four family members

Shu-Chi Huang1, Shih-Jen Tsai, Joseph C C Chang

  • 1Department of Psychiatry, Chung-Shan Medical University Hospital, Taiwan, R.O.C. schwang@gcn.net.tw

International Journal of Psychiatry in Medicine
|September 25, 2004
PubMed
Abstract

Insights

Selective serotonin reuptake inhibitor (SSRI) antidepressant fluoxetine may cause memory impairment, particularly in individuals with genetic predispositions. This side effect appears specific to fluoxetine and reversible upon switching medications.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Genetics

Background:

  • Selective serotonin reuptake inhibitors (SSRIs) are commonly prescribed antidepressants.
  • Fluoxetine, a widely used SSRI, has been previously linked to cognitive effects.
  • The potential impact of SSRIs on learning and memory warrants further investigation.

Observation:

  • Four cases of memory impairment were observed within the same family.
  • The memory impairment emerged following the initiation of fluoxetine treatment.
  • Symptoms resolved upon discontinuation of fluoxetine and switching to a different SSRI.

Findings:

  • A potential association between fluoxetine use and memory impairment is suggested.
  • The observed side effect appears to be specific to fluoxetine, not SSRIs in general.
  • Genetic factors may play a role in the susceptibility to fluoxetine-induced memory impairment.

Implications:

  • This suggests a potential drug-specific side effect of fluoxetine impacting memory.
  • Genetic screening might be considered for patients at risk of cognitive side effects.
  • Further research into the mechanisms involving the serotonergic system and BDNF is warranted.

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