37 citations
,
January 2009 in “Sexual Development” Fadrozole and Finasteride change frog sex ratios and cause intersex animals with altered gene expressions.
6 citations
,
May 2020 in “JAMA Ophthalmology” Using 5-alpha-reductase inhibitors, drugs for prostate issues and hair loss, may lead to eye abnormalities in men.
September 2018 in “Journal of Experimental & Biomedical Sciences” DK peptides can reduce hair loss by inhibiting the 5α-reductase enzyme and have antioxidant effects.
67 citations
,
February 1997 in “Teratology” Finasteride, when given in high oral doses to pregnant monkeys, caused genital abnormalities in male fetuses, but not in female fetuses or those exposed to intravenous finasteride.
19 citations
,
October 2018 in “PLOS ONE” 5 alpha-reductase inhibitors can slightly improve symptoms of enlarged prostate but have a high risk of sexual side effects.
3 citations
,
August 2020 in “Urology Journal” Using 5-alpha reductase inhibitors may increase the risk of mild depression.
6 citations
,
April 2016 in “PubMed” The review found that women using hair loss drugs like finasteride and dutasteride rarely reported sexual side effects.
1 citations
,
December 2021 in “Natural Product Research” β-sitosterol and brassicasterol may help treat hair loss.
April 2019 in “The Journal of urology/The journal of urology” Prescriptions for 5-alpha reductase inhibitors dropped significantly after the FDA's safety warning, especially for men with benign prostatic hyperplasia.
January 2019 in “Urology Practice” Urologists prescribe newer medications more often than primary care physicians, who could benefit from more education on treatment options.
73 citations
,
January 1994 in “European Urology” Finasteride works better than Permixon in reducing dihydrotestosterone levels.
35 citations
,
October 2004 in “Biology of Reproduction” PNU157706 reduced rat sperm movement and fertility without affecting offspring health.
27 citations
,
May 2015 in “Neuropharmacology” Dutasteride protects dopamine neurons in Parkinson's mice, but Finasteride doesn't.
7 citations
,
April 2015 in “General and Comparative Endocrinology” Finasteride negatively affects fish reproduction and gonadal development.
3 citations
,
February 2021 in “Molecules” A new method was created to test the effectiveness of Dihydrotestosterone (DHT) inhibitors, like finasteride and dutasteride, in human and fish cells. The results showed fish cells are more sensitive to these treatments, and dutasteride works better than finasteride in all tested cells.
1 citations
,
February 2023 in “Plants” BB4CMU rice bran oil may help treat hair loss and gray hair.
Fructus Psoraleae may help treat hair loss by inhibiting 5-α reductase and affecting the Nrf2-Keap1 pathway.
October 2008 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 5-alpha reductase inhibitors do not increase hip fracture risk.
136 citations
,
March 1996 in “Journal of the American Chemical Society” Finasteride effectively blocks enzyme causing male pattern baldness.
86 citations
,
March 1993 in “Toxicology and Applied Pharmacology” Finasteride affects male rat genitalia development, causing abnormalities during specific pregnancy days.
47 citations
,
June 2009 in “Journal of Biological Chemistry” Finasteride helps treat hair loss and prostate enlargement by blocking a specific enzyme.
44 citations
,
December 2005 in “The Journal of Steroid Biochemistry and Molecular Biology” Combining 5α-reductase and aromatase inhibitors may better reduce estrogen levels.
32 citations
,
September 2011 in “Journal of Neuroendocrinology” Inhibiting 5α-reductase during late pregnancy shortens gestation, reduces litter size, and harms memory in rat offspring.
14 citations
,
March 2018 in “Translational Stroke Research” Finasteride helps protect brain in old male rats.
12 citations
,
April 2018 in “Physiology & Behavior” Finasteride raises suicide-linked aggression and stops clozapine's positive effects in schizophrenia animals.
10 citations
,
May 2019 in “International Journal of Environmental Research and Public Health” Finasteride may cause kidney damage.
8 citations
,
April 2021 in “Journal of Clinical Investigation” Finasteride reduces opioid use and withdrawal symptoms in animals.
3 citations
,
October 2015 in “Human Psychopharmacology-clinical and Experimental” Finasteride doesn't affect sleep spindles in men.
2 citations
,
January 2025 in “Frontiers in Pharmacology” Purple corn extract may help reduce prostate enlargement and inflammation.
33 citations
,
January 2016 in “Skin appendage disorders” The document concludes that sexual and psychiatric side effects from 5-alpha-reductase inhibitors are reported, but more high-quality research is needed to understand how often they occur.