Can finasteride cause permanent sexual side effects?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Finasteride, a medication commonly prescribed for hair loss and enlarged prostate, has been linked to persistent sexual side effects in some users. Research suggests these effects—including reduced libido, erectile dysfunction, and decreased sexual satisfaction—may continue even after discontinuing the medication, a condition sometimes referred to as Post-Finasteride Syndrome (PFS).

If you're experiencing symptoms you suspect may be linked to finasteride or another cause, understanding what's happening in your body is the critical first step. A free, instant, online symptom check can help you evaluate your symptoms, identify possible conditions, and guide your next steps—whether that's a conversation with your doctor or exploring treatment options. It takes just a few minutes and could bring clarity to your concerns.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Learn if finasteride caused your symptoms Discover likely causes of finasteride side effects Find out if symptoms need care today See OTC options for sexual side effects Find a doctor for finasteride concerns Discover home remedies for finasteride symptoms Understand if sexual changes may be serious

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Explanation

Finasteride is a medication often used to treat hair loss and prostate issues. Some research indicates that it may lead to persistent sexual side effects for some individuals. According to the studies by Irwig and Ganzer, there are reports of ongoing sexual, emotional, and cognitive problems even after discontinuing the drug. This condition is sometimes referred to as post-finasteride syndrome.

Key Points

Persistent Side Effects: Some people report sexual side effects like decreased libido and erectile dysfunction that continue after stopping finasteride.
Additional Concerns: Emotional and cognitive issues have also been noted in some cases.
Research Limitations: While these studies raise important concerns, more research is needed to fully understand how often these side effects occur and why they persist in some individuals.

If you're experiencing concerning symptoms and want to understand what might be causing them, try Ubie's free AI symptom checker to get personalized insights in just a few minutes.

(References)

Irwig MS. (2012). Persistent sexual side effects of finasteride: could they be .... The journal of sexual medicine, 22789024.
Ganzer CA, Jacobs AR, & Iqbal F. (2015). Persistent sexual, emotional, and cognitive impairment .... American journal of men's health, 24928450.
Traish AM. (2020). Post-finasteride syndrome: a surmountable challenge for .... Fertility and sterility, 32033719.

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