Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 8/27/2025

Role of Mirtazapine in Managing Symptoms of Parkinson's Disease

Clinical Applications

  • The American Heart Association recommends considering mirtazapine for Parkinson's patients with comorbid depression, sleep disturbances, or weight loss, due to its potential benefits in these areas 1, 2, 3
  • Mirtazapine can be used to address insomnia in Parkinson's patients, particularly when cognitive behavioral therapy for insomnia has been ineffective, as suggested by the American Academy of Sleep Medicine 4, 5, 6, 7
  • The American College of Cardiology notes that mirtazapine has been shown to be safe in patients with cardiovascular disease, which is relevant for many elderly Parkinson's patients 1, 2, 3

Dosing and Administration

  • The American Academy of Family Physicians recommends a starting dose of 7.5 mg at bedtime, with gradual increases in 7.5 mg increments based on response and side effects 8
  • The maximum dose is typically 45 mg daily, which may be given in divided doses, according to the American Academy of Family Physicians 8
  • In elderly or debilitated patients, lower starting doses are recommended by the American Academy of Family Physicians 8