Dopamine D2 receptor antagonism of antipsychotics and the risk of death due to choking

Jurjen J. Luykx*, Antti Tanskanen, Markku Lähteenvuo, Peter Manu, Christoph U. Correll, Alkomiet Hasan, Johannes Lieslehto, Heidi Taipale, Jari Tiihonen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The risk of fatal choking for people with schizophrenia and associations with antipsychotic medication are largely unknown. Therefore, we calculated the choking-related standardized mortality ratio for schizophrenia relative to the general population (SMRchoking). We also computed adjusted hazard ratios (aHR) of choking-related mortality for antipsychotics in a nationwide cohort of patients with schizophrenia (N = 59,916). SMRchoking was 20.5 (95 % confidence interval (CI)=17.1–23.9). The aHR was 1.74 (95 %CI=1.19–2.55) for strong dopamine 2-antagonists. For other antipsychotics, CIs included 1. Importantly, aHRs were particularly high for high dose categories of strong dopamine D2 receptor (D2R) antagonists. In conclusion, a schizophrenia diagnosis is associated with a 20-fold risk of death due to choking. This risk is elevated during use of strong D2R antagonist antipsychotics, particularly when prescribed in high dosages.

Original languageEnglish
Article number116012
JournalPsychiatry Research
Volume339
DOIs
Publication statusPublished - Sept 2024
Externally publishedYes

Keywords

  • Antipsychotic
  • Choking
  • Clozapine
  • Olanzapine
  • Pneumonia
  • Quetiapine
  • Schizophrenia

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