Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/25/2025

Fluvoxamine Dosing for Obsessive-Compulsive Disorder in Adults

Therapeutic Range and Duration

  • The American Academy of Family Physicians notes that the effective dose range for fluvoxamine is 100-300 mg/day in clinical trials demonstrating efficacy 1

Discontinuation

  • The Journal of the American Academy of Child and Adolescent Psychiatry reports that fluvoxamine has been associated with discontinuation syndrome, particularly given its shorter half-life compared to some other SSRIs 2

Clinical Considerations

  • The American family physician advises to exercise caution with drug interactions, as fluvoxamine is a potent CYP1A2 inhibitor and moderate inhibitor of CYP2C19 and CYP3A4, and to avoid concomitant use with alprazolam or triazolam due to interaction risk 1
  • The Journal of the American Academy of Child and Adolescent Psychiatry also notes that fluvoxamine is a potent CYP1A2 inhibitor and moderate inhibitor of CYP2C19 and CYP3A4, requiring caution with drug interactions 2