Welcome

The Post-Finasteride Syndrome Foundation’s primary mission is to fund 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.

Adverse drug reaction reports worldwide

Adverse drug reaction reports worldwide

PFS research studies published

PFS research studies published

Known suicides worldwide

Known suicides worldwide

Doctors & researchers speaking out

Doctors & researchers speaking out

Nations warning of PFS

Nations warning of PFS

National media reports worldwide

National media reports worldwide

Sources

Patient Services

Connect with other PFS patients

Consult knowledgeable doctors

Report your side effects

Doctors & Researchers Speaking Out

Using finasteride for hair loss is like shooting at sparrows with cannons.

Using finasteride for hair loss is like shooting at sparrows with cannons. The drug.…blocks not only the super hormone but also other hormones that affect thinking and psyche, mood and emotions. Discontinuation of the drug should actually make the hormones work again.…but apparently, something breaks down in some men, in the prostate, in the brain, in the whole organism.

—I Didn’t Want to Go Bald. A Pill the Doctor Gave Me Destroyed My Life (English translation): Die Zeit, Feb. 22, 2018

Michael Zitzmann, MD, Andrology Professor
University of Munster, Germany

We wouldn’t recommend that any man take [finasteride], especially not young men.

We are certainly very cautious, because we see the side effects. We wouldn’t recommend that any man take [finasteride], especially not young men. The longer they take it, the greater the risk of experiencing persistent side effects, including after they’ve stopped.

—Do Anti-Baldness Remedies Make You Impotent? Puls, SRF-TV, May 7, 2018

Doris Mannhard, MD, Urologist
University Hospital Zürich

For the first time, we demonstrate a tissue-specific methylation pattern of SRD5A2 promoter in PFS patients.

For the first time, we demonstrate a tissue-specific methylation pattern of SRD5A2 promoter in PFS patients [which] could represent an important mechanism of neuroactive steroid levels and behavioral disturbances previously described in PFS… The SRD5A2 promoter was more frequently methylated in the CSF of PFS patients compared to controls (56.3 versus 7.7%).

—Altered methylation pattern of the SRD5A2 gene in cerebrospinal fluid of post-finasteride patients: a pilot study: Endocrine Connections, July, 2019

Roberto Melcangi, PhD, Head of Neuroendocrinology, Department of Pharmacological and Biomolecular Sciences
University of Milano

FDA is concerned that use of finasteride by pediatric patients may pose long-term safety risks.

Finasteride inhibits Type II 5(alpha)-reductase, which metabolizes testosterone to the potent androgen 5(alpha)-dihydrotestosterone. FDA is concerned that use of finasteride by pediatric patients may pose long-term safety risks regarding growth, development and sexual function.

—FDA response to Merck & Co.’s citizen petition requesting that finasteride be added to the List of Approved Drugs for Which Additional Pediatric Information May Produce Health Benefits in the Pediatric Population: May 2000

Janet Woodcock, MD, Director of the Center for Drug Evaluation and Research
US Food and Drug Administration
More

2015 PFS Foundation Annual Address

Aug. 4, 2015 Dear Friends: By many accounts, we’ve reached a tipping point on post-finasteride syndrome awareness within the medical community. The most significant advancement occurred in March, when the U.S. National Institutes of Health added PFS to its Genetic and Rare Diseases Information Center. “Studies are under way to understand the safety profile of […]

Southwest Brain Bank Launches PFS Brain and Spinal Cord Donation Program

SOMERSET, N.J., July 15, 2015 – The Southwest Brain Bank (SWBB) in the Department of Psychiatry at the University of Texas Health Science Center in San Antonio has received its first donation of the brain and spinal cord of a post-finasteride syndrome (PFS) patient and formed a program to collect and study post-mortem human brain […]

U.S. National Institutes of Health Adds PFS to Genetic and Rare Diseases Info Center

May 19, 2015 Dear Public Health Official: The U.S. National Institutes of Health recently added post-finasteride syndrome (PFS) to its Genetic and Rare Diseases Information Center, noting that: “Studies are underway to understand the safety profile of 5-alpha reductase inhibitor drugs with respect to adverse events…and their permanency.” This federal listing of PFS comes in […]

Number of Nations Logging onto PFS Foundation Website Rises 22% in 2014

SOMERSET, N.J., Jan. 6, 2015 – The number of nations that logged onto the Post-Finasteride Syndrome Foundation website jumped 22 percent in 2014, according to Google Analytics. In all, users in 157 countries—or 81 percent of the world (as defined by the 195 nations recognized by the U.S. Department of State)—accessed information on the condition […]