March 2026 in “The Aging Male” This retrospective pharmacovigilance study reviewed adverse event reports from 2004 to 2025 for drugs treating benign prostatic hyperplasia, identifying distinct safety signals for α1-blockers, 5ARIs, and PDE5I, including some potential new adverse events that require further investigation.
December 2025 in “International Neurourology Journal” This study examined the dementia risk in patients with benign prostatic hyperplasia using alpha-blockers and 5-alpha reductase inhibitors, finding no significant association between these medications and increased dementia risk compared to no treatment, but noted higher risk probabilities for certain 5ARIs.
September 2025 in “Journal of Natural Remedies” This review article concluded that certain herbal remedies targeting 5-alpha reductase inhibitors may prevent hair loss in androgenetic alopecia by blocking dihydrotestosterone production, although standardizing the concentration of active herbal compounds remains a challenge.
September 2025 in “Journal of the American Academy of Dermatology” Using 5α-reductase inhibitors for hair loss in women doesn't increase cancer risk.
September 2024 in “Frontiers in Neuroendocrinology” In this review, the researchers reported that 5α-reductase inhibitors demonstrated neuroprotective effects and reduced dyskinesias in animal models of Parkinson's disease, suggesting their potential for repurposing to manage symptoms in men with PD.
July 2024 in “Actas Dermo-Sifiliográficas” Finasteride and dutasteride do not significantly change beard thickness in men.
July 2024 in “Age and Ageing” In this retrospective, population-based cohort study, researchers found no significant difference in age-related macular degeneration incidence between BPH patients using 5α-reductase inhibitors and those on tamsulosin, but observed a slight increased risk with dutasteride compared to finasteride.
April 2024 in “The Journal of urology/The journal of urology” This study observed that although 5-alpha-reductase inhibitors reduce PSA density in patients on active surveillance for prostate cancer, those who progress to more serious disease still show higher PSA densities, suggesting these inhibitors accentuate differences in clinically significant cases.
November 2023 in “Expert Opinion on Pharmacotherapy” This abstract does not provide any specific results or findings but describes male androgenic alopecia as a progressive and psychologically distressing hair-loss disorder involving hair follicle miniaturization.
July 2023 in “Dermatology and Therapy” This review analyzed the use of 5-alpha reductase inhibitors (5ARIs) for treating various dermatological conditions such as androgenetic alopecia, acne, and hirsutism, emphasizing their efficacy and safety profile.
This study examined lawsuits in Canada involving 5α-reductase inhibitors, revealing that all cases related to persistent erectile dysfunction as a side effect in men treated for hair loss, but no judgments have been made yet against physicians or pharmaceutical companies.
January 2021 in “Journal of the European Academy of Dermatology and Venereology” PrEP doesn't increase STI risk in high-risk men, anti-androgen drugs may lower ICU admission for male COVID-19 patients, a 3-point injection is better for crow's feet, and the 'Geriatric-8' tool could help assess frailty in older skin cancer patients.
April 2017 in “The Journal of urology/The journal of urology” This Cochrane review reports that 5-alpha reductase inhibitors may slightly reduce urological symptoms and acute urinary retention risk compared to placebo, with a possible small reduction in surgical intervention need compared to alpha blockers.
This review discusses 5-alpha reductase inhibitors, highlighting their long-term efficacy and tolerability in treating benign prostate hyperplasia, while also noting sexual dysfunction as a common adverse effect.
March 2014 in “The Journal of Urology” This study observed that long-term treatment with 5ARIs in men with LUTS/BPH was linked to worsening sexual function, whereas doxazosin alone had minimal negative impact.
December 2012 in “Canadian Urological Association Journal” This consensus summary suggests that 5-alpha reductase inhibitors have clear benefits for benign prostatic hyperplasia, but their impact on prostate cancer prevention is still debated.
November 2011 in “Nature Clinical Practice Urology” This article reviews the use of 5alpha-reductase inhibitors for managing benign prostatic hyperplasia and reports no new clinical results.
October 2008 in “The Journal of Urology” This article discusses the role of 5-alpha-reductase inhibitors in prostate cancer prevention and highlights a medical quandary, but it reports no new clinical findings.
January 2020 in “The Journal of Sexual Medicine” This study evaluated the persistent adverse effects of 5α-reductase inhibitors in men previously treated for androgenic alopecia and highlighted issues with sexual, genitourinary, physical, psychiatric, cognitive, and androgenic health.
July 2018 in “Reactions Weekly” Lower finasteride doses had more side effects; dutasteride caused back pain; more research needed on post-finasteride syndrome.
May 2017 in “Urology and andrology” Finasteride and dutasteride, used for prostate issues and hair loss, can cause side effects like sexual dysfunction and mental issues, which may continue even after stopping the medication, a condition called post-finasteride syndrome, for which there's currently no cure.
63 citations
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December 2013 in “PLoS ONE” This study suggests that finasteride may reduce the aggressiveness and invasion of prostate tumors, with effects potentially differing based on the androgen responsiveness of the patient's prostate cells.
23 citations
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September 2020 in “BMC Cancer” This retrospective cohort study found that patients using 5α-reductase inhibitors had reduced bladder cancer-related mortality compared to nonusers, with no significant effect on bladder cancer recurrence or upper tract urothelial carcinoma mortality.
19 citations
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June 2017 in “Asian journal of urology” This review discusses the stratification and management of male patients with lower urinary tract symptoms and benign prostatic hyperplasia in primary care and reports no new clinical results.
5 citations
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December 2024 in “Archivio Italiano di Urologia e Andrologia” This review discusses medical therapies for benign prostatic hyperplasia, highlighting the importance of personalizing treatments to individual patient needs and preferences.
4 citations
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December 2021 in “Archivio italiano di urologia andrologia” This review found that patients taking antiandrogens, 5 alpha-reductase inhibitors, and spironolactone have an increased risk of developing gynecomastia, potentially due to hormonal changes.
4 citations
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August 2011 in “The Lancet Oncology” Off-label drug use can be risky and requires careful consideration to ensure patient safety.
3 citations
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July 2021 in “Drug Testing and Analysis” This study found that chronic administration of finasteride affected the isotopic composition of testosterone and nandrolone metabolites, impacting the drug-testing outcomes in athletic contexts.
2 citations
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July 2022 in “Sexual Medicine” This study found that 5-α reductase inhibitors and neuropsychiatric medications were most frequently reported for erectile dysfunction in a national pharmacovigilance database from 2010 to 2020.
2 citations
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April 2021 in “Canadian Journal of Urology” This review summarizes existing studies on 5-alpha reductase inhibitors, noting their effectiveness in reducing prostate volume and cancer risk but highlighting an increased risk of higher grade prostate cancer.