How common are long-term side effects from finasteride?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Yes, long-term side effects from finasteride are possible. Some men experience persistent sexual, physical, or mental health issues—such as erectile dysfunction, low libido, or depression—that may continue even after stopping the medication. This condition is sometimes referred to as post-finasteride syndrome (PFS).

If you're noticing symptoms you suspect may be linked to finasteride or another underlying cause, don't guess. Understanding what's happening in your body is the first step toward getting the right care. Take a free, instant, online symptom check to identify possible causes and clarify your next steps with confidence.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Learn if finasteride caused your symptoms Discover likely causes of finasteride side effects See if symptoms need urgent medical care Find OTC options for finasteride symptoms Find a doctor for finasteride concerns Discover medically valid home remedies for side effects Understand if finasteride symptoms need evaluation

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Explanation

Long-term side effects of finasteride, particularly sexual side effects, have been documented in some users. These effects can persist even after discontinuing the medication.

Key Points:

Sexual Side Effects: Some users of finasteride experience persistent sexual side effects such as decreased libido, erectile dysfunction, and reduced ejaculate volume. These issues can continue even after stopping the drug.
Post-Finasteride Syndrome (PFS): This term is used to describe a cluster of symptoms that persist after stopping finasteride. It includes sexual, physical, and mental health issues.
Research Findings: Studies have highlighted the need for further research to understand why these side effects persist and how common they are.

If you're experiencing any concerning symptoms or side effects, you can get personalized health insights by taking a free AI symptom checker test to better understand what might be happening with your body.

(References)

Irwig MS. (2012). Persistent sexual side effects of finasteride: could they be .... The journal of sexual medicine, 22789024.
Irwig MS, & Kolukula S. (2011). Persistent sexual side effects of finasteride for male pattern .... The journal of sexual medicine, 21418145.
Traish AM. (2020). Post-finasteride syndrome: a surmountable challenge for .... Fertility and sterility, 32033719.

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