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Antipsychotic-induced weight gain.

A J Goudie1, G D Cooper, J C G Halford

  • 1School of Psychology, Liverpool University, Liverpool, UK. ajg@liverpool.ac.uk

Diabetes, Obesity & Metabolism
|July 30, 2005
PubMed
Summary

Novel antipsychotic drugs offer benefits but can cause significant weight gain, impacting patient health and treatment adherence. This review examines atypical antipsychotic weight gain, its causes, and animal models for future research.

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Area of Science:

  • Pharmacology
  • Neuroscience
  • Clinical Medicine

Background:

  • Atypical antipsychotic medications represent advancements over typical antipsychotics.
  • A subset of atypical antipsychotics is associated with significant weight gain, affecting patient adherence and health outcomes.
  • Understanding the mechanisms behind this adverse drug reaction is crucial for improving patient care.

Purpose of the Study:

  • To review the differential weight gain potential of various atypical antipsychotics.
  • To explore the neurochemical underpinnings (neurotransmitters and neuropeptides) of atypical antipsychotic-induced weight gain.
  • To assess the current status and future directions of animal models for studying this phenomenon.

Main Methods:

  • Literature review and synthesis of existing research on atypical antipsychotics and weight gain.
  • Analysis of clinical data and pharmacological studies.
  • Evaluation of the utility and limitations of animal models in preclinical research.

Main Results:

  • Significant variability exists in the propensity of different atypical antipsychotics to cause weight gain.
  • Neurotransmitter and neuropeptide systems, including serotonin, dopamine, and histamine, are implicated in weight regulation.
  • Animal models are under development but require further refinement to accurately predict human responses.

Conclusions:

  • Weight gain is a critical side effect of some atypical antipsychotics, necessitating careful patient monitoring and drug selection.
  • Further research into the neurobiological mechanisms is needed to develop strategies for mitigating weight gain.
  • Improved animal models are essential for advancing the development of safer and more effective antipsychotic treatments.

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