Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/30/2025

Citalopram and Weight Gain

Weight Effects of Antidepressants

  • Within the SSRI class, paroxetine has the highest risk of weight gain, while fluoxetine and sertraline are typically associated with initial weight loss followed by weight neutrality with long-term use 1
  • Bupropion is the only antidepressant consistently shown to promote weight loss through appetite suppression and reduced food cravings 1, 2

Comparative Weight Effects Among Antidepressants

  • Escitalopram, paroxetine, and duloxetine showed higher weight gain than citalopram, although the exact weight gain difference is not specified 1, 2
  • Bupropion may be a better alternative for patients with significant concerns about weight gain, as it consistently shows the least weight gain or even weight loss 1, 2

Monitoring and Management

  • Regular monitoring of weight is recommended during citalopram treatment, and for patients who experience significant weight gain on citalopram, consider switching to a more weight-neutral option like fluoxetine or bupropion if clinically appropriate 1
  • Be aware that bupropion is activating and may exacerbate anxiety; assess patient's anxiety levels before prescribing 1

Important Caveats

  • Weight gain with citalopram appears to be less pronounced than with other psychotropic medications such as certain antipsychotics, mood stabilizers, and tricyclic antidepressants 2, 3

REFERENCES

1

Alternative Antidepressant Options for Weight Gain and Treatment Resistance [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025