Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 6/14/2025

Discontinuation of Finasteride in Geriatric Patients

Introduction to Finasteride Discontinuation

  • The American Urological Association recommends considering the discontinuation of finasteride in patients with established incontinence, as the benefits of preventing urinary retention are negated 1
  • Finasteride is associated with a reduction in risk of acute urinary retention (from 5.6% to 3.3%) and reduction in need for surgical intervention (from 3.3% to 1.7%) in patients without established incontinence 1
  • The primary benefits of finasteride, including reduction in risk of acute urinary retention and need for surgical intervention, are less meaningful in a patient already experiencing incontinence 1
  • Geriatric patients, such as those over 94 years old, are significantly older than populations studied in clinical trials for finasteride (most studies included men with mean ages between 62-66 years) 1
  • The American Geriatrics Society recommends considering age-related factors, including altered pharmacokinetics, when prescribing finasteride to geriatric patients 1

Medication Burden and Quality of Life

  • Reducing unnecessary medications is particularly important in elderly patients with cognitive impairment, such as those with Alzheimer's disease 1
  • The American College of Clinical Pharmacology recommends evaluating the medication burden and potential for adverse effects and drug interactions in geriatric patients 1
  • Finasteride is associated with sexual adverse effects, including erectile dysfunction (2-4% higher than placebo), decreased libido, decreased ejaculate volume, and gynecomastia, which may negatively impact quality of life 1

Discontinuation and Monitoring

  • Finasteride can be stopped immediately without tapering, and no withdrawal syndrome has been documented 1
  • The American Urological Association recommends monitoring for changes in urinary symptoms over 1-3 months after discontinuation of finasteride 1
  • If urinary retention develops (unlikely given established incontinence), reassess the decision to discontinue finasteride 1

Alternative Management and Documentation

  • The American Urological Association recommends focusing on practical management of incontinence with appropriate products and ensuring adequate hydration while managing fluid intake timing 1
  • Clearly document the rationale for discontinuation in the medical record to inform other healthcare providers 1
  • PSA monitoring is recommended, as PSA levels will increase after finasteride discontinuation (approximately doubling within 3-6 months) 1