2152 citations
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November 2013 in “Urologia Internationalis” Many men under 40 with erectile dysfunction have organic causes like vascular issues, medication side effects, or hormonal problems.
71 citations
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November 2012 in “Expert Opinion on Drug Safety” 5-alpha reductase inhibitors can cause sexual side effects like erectile dysfunction and reduced sexual desire, sometimes lasting after stopping the drug.
15 citations
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November 2015 in “Pharmacopsychiatry” α-Blockers and 5-ARIs for BPH can cause sexual dysfunction, including erectile and ejaculatory issues.
35 citations
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June 2018 in “Urology” The review suggests younger men taking 1 mg finasteride report more side effects, including sexual, skin, metabolic, and psychological issues.
5 citations
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April 2016 in “PubMed” Young men with mild hair loss who experience significant social and emotional distress are more likely to have sexual problems.