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
PFS research studies published
Known suicides worldwide
Doctors & researchers speaking out
Nations warning of PFS
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
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
Blocking 5alpha-reductase by finasteride treatment may have broad consequences for the nervous system.
[W]e have evaluated in male rats the effects of a subchronic treatment with low doses of finasteride.…and the consequences of its withdrawal.…on neuroactive steroid levels…. Interestingly, at the withdrawal, some of these effects persisted, and different changes in neuroactive steroid levels, and in the expression of receptors, were also detected. Altogether these findings suggest that the block of the enzyme 5alpha-reductase by finasteride treatment may have broad consequences for the nervous system.
—Effect of Finasteride, an Inhibitor of the Enzyme 5alpha-Reductase, in the Nervous System: The Journal of Steroid Biochemistry and Molecular Biology, July 2017
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
SOMERSET, N.J., July 13, 2016 – Reports of finasteride-induced completed suicides are up 8.4% in the World Health Organization Progamme for International Drug Monitoring’s database of adverse drug reactions (ADRs) for Q1 through Q2 2016 over Q4 2015. The absolute number of completed suicides rose from 59 to 64 within that period. Also in the […]
SOMERSET, N.J., Jan. 5, 2016 – Reports of finasteride-induced Suicidal and Self-Injurious Behavior are up 33 percent in the World Health Organization Progamme for International Drug Monitoring’s database of adverse drug reactions (ADRs) for Q4 vs. Q3 2015. Within that category (itself a subcategory of Psychiatric Disorders), suicidal ideaton is up 47.2%; suicide attempts up […]
SOMERSET, N.J., Jan. 5, 2016 – Traffic to the PFS Foundation website rose 33.6 percent in 2015, compared to 2014, according to Google Analytics. Concurrently, users in 161 countries—or 82.5 percent of the world (as defined by the 195 nations recognized by the U.S. Department of State)—accessed information on the condition via PFSFoundation.org in 2015, […]
SOMERSET, N.J., Sept. 9, 2015 – The Post-Finasteride Syndrome Foundation is reminding PFS patients to report all persistent side effects to their respective national pharmacovigilance authorities for inclusion in the World Health Organization Progamme for International Drug Monitoring’s VigiBase database for adverse drug reactions (ADRs). Run by Uppsala Monitoring Centre (UMC), which provides scientific leadership […]
SOMERSET, N.J., Sept. 7, 2015 – Data from preclinical and clinical studies have provided substantial evidence that 5α-Reductase inhibitors (5α-RIs) such as finasteride and dutasteride cause loss or reduction of libido, increase the risk of erectile dysfunction and ejaculatory dysfunction, and may contribute to the onset of depression. These agents interfere with the biosynthesis and […]