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
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
Roberto Melcangi, PhD, Head of Neuroendocrinology, Department of Pharmacological and Biomolecular Sciences
University of Milano
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
Propecia should not have been authorized in the first place, and its approval should be revoked as soon as possible.
Propecia was approved in 1997 as a solution to slow male pattern baldness. Finasteride is not only poorly effective, but it can lead to infertility. As we stated in 2006, we advise against a cosmetic product with potential endocrine side effects. Propecia should have never been approved, and its authorization should be revoked as soon as possible.
—Finasteride-induced Infertility (English translation): Der Arzneimittelbrief (The Drug Letter), November 2013
Dietrich von Herrath, MD, Chief Physician
St. Joseph Hospital, Berlin
Finasteride ‘Causes Several Alterations’ in the Section of the Brain Responsible for Processing Long-term Memory and Emotional Responses, New Animal-model Study Demonstrates
SOMERSET, N.J., Oct. 1, 2018 – “Finasteride treatment causes several alterations in the hippocampus,” the section of the brain responsible for processing long-term memory and emotional responses, according to a new study conducted at the University of Milano, and the Cajal Institute and Carlos III Health Institute, both in Madrid. Titled Treatment of male rats […]