Welcome

The Post-Finasteride Syndrome Foundation’s primary mission is to facilitate research on the characterization, underlying biologic mechanisms and treatments of post-finasteride syndrome (PFS). Other goals include generating public awareness of PFS and providing support for patients suffering from the condition.

Read our lawsuit compelling the FDA to act on our Citizen Petition.

Read our FDA Citizen Petition to remove finasteride from the market.

Read all unsealed documents in the US Propecia litigation.

Adverse drug reaction reports worldwide

PFS research studies published

Known suicides worldwide

Doctors & researchers speaking out

Nations warning of PFS

National media reports worldwide

Sources

Patient Services

Connect with other PFS patients

Consult knowledgeable doctors

Report your side effects

Read the latest research

Daniel M. Stewart: 1976-2014

April 25, 2014 Dear Friends: The Post-Finasteride Syndrome Foundation is saddened to announce the passing of Daniel M. Stewart. The 37-year-old native of Troy, Michigan, and Centertown, Kentucky, died Saturday, April 12, 2014 at his home in Denton, Texas. Daniel, who suffered from post-finasteride syndrome, had recently taken part in a clinical-research study on the […]

Number of Nations Logging onto PFSFoundation.org Rose 29% in 2013

SOMERSET, N.J., Jan. 6, 2014 – The number of nations that logged onto the Post-Finasteride Syndrome Foundation website rose 29 percent in 2013, according to Google Analytics. In all, users in 120 countries outside the United States—or 61 percent of the world (as defined by the 195 nations recognized by the U.S. Department of State)—accessed […]

Reminder: Report PFS Symptoms to FDA MedWatch

SOMERSET, N.J., Oct. 29, 2013 – The Post-Finasteride Syndrome Foundation is reminding PFS patients to report all persistent side effects to the FDA MedWatch program. MedWatch is the U.S. Food and Drug Administration’s system for detecting safety-hazard signals for pharmaceutical products and medical devices. If a signal is detected, the FDA can issue safety alerts, […]

Clinical Study of Post-Finasteride Syndrome Launched at Baylor College of Medicine

SOMERSET, N.J., Aug. 21, 2013 – The Post-Finasteride Syndrome Foundation today announced the funding of a second major clinical study on post-finasteride syndrome (PFS), this one at Baylor College of Medicine (BCM) in Houston, Texas. Titled “Genetic and Epigenetic Studies on Post-Finasteride Syndrome Patients,” the research is being led by Mohit Khera (right), MD, MBA, […]

PFS Patient Query: Suicide Cases

  August 7, 2013   Dear Friends: The PFS Foundation is seeking information about patients who have taken finasteride or dutasteride, and who have attempted suicide or who have completed suicide. This is an area of active research interest and researchers are seeking to obtain medical records and other relevant material for such patients. To […]

Doctors & Researchers Speaking Out

Men under the age of 40 who use finasteride for alopecia are at risk for suicide if they develop persistent sexual adverse effects and insomnia.

An important pattern of symptoms was common among all cases who committed suicide in the setting of finasteride use: insomnia and persistent sexual dysfunction after medication discontinuation. Insomnia and fatigue/tiredness were some of the most debilitating symptoms… Men under 40 years of age who use finasteride for alopecia are at risk of suicide if they develop persistent sexual adverse effects and insomnia.

Finasteride and Suicide: A Postmarketing Case Series: Dermatology, January 14, 2020

Michael S. Irwig, MD, Attending Endocrinologist
Beth Israel Deaconess Medical Center

Two subjects—eight percent—committed suicide during or after the study.

While the sexual side effects of 5ARIs are well known, there may be persistent genitourinary, physical, psycho-cognitive, anti-androgenic and penile vascular changes after 5ARI discontinuation. Use of 5ARIs for treatment of AGA may lead to persistent sexual, genitourinary, physical, psycho-cognitive, and anti-androgenic sequelae even after cessation of 5ARI therapy… Two subjects (8%) committed suicide during or after the study.

Penile vascular abnormalities in young men with persistent side effects after finasteride use for the treatment of androgenic alopecia: Translational Andrology and Urology, April 2020

Mohit Khera, MD, Director, Laboratory for Andrology Research
Baylor College of Medicine

Health care professionals should…conduct a full evaluation and a…risk-benefit assessment for patients before each prescription of finasteride.

As prescribers, our primary duty is to do no harm. Health care professionals should keep themselves abreast of these potential signals and, accordingly, conduct a full evaluation and a detailed, personalized risk-benefit assessment for patients before each prescription of finasteride.

Ongoing Concerns Regarding Finasteride for the Treatment of Male-Pattern Androgenetic Alopecia: JAMA Dermatology, November 2020

Roger S. Ho, MD, Associate Professor of Dermatology
NYU Langone Health

This drug for young men must be taken off the market.

As of 2018, 15,000 cases of adverse reactions to finasteride were reported to the WHO—which is a huge number to begin with. And the interesting thing is that the average age of this group was 32 to 34 years old… This drug for young men must be taken off the market.

—Documentary on German network NDR titled Side Effects of Finasteride Are Underestimated: January 25, 2021

Hartmut Porst, MD
Founder, European Institute for Sexual Health