Finasteride, reviewed by a provider
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Research GuidesFinasteride and fertility: what the label and studies say about semen and spermWhat the Propecia label and three studies report about semen, sperm counts and reversibility, with the dose used in each.Read guide →Research GuidesWhat the finasteride 1 mg prescribing information says about use in menA plain summary of what the Propecia (finasteride 1 mg) label says about who it is indicated for, how it is taken and who it is not for.Read guide →Research GuidesPSA tests and prostate cancer screening while taking finasterideWhat the label and trials report about PSA on finasteride, and what the label and the 5 mg Prostate Cancer Prevention Trial say about prostate cancer.Read guide →Research GuidesWhat the finasteride trials measured: label studies, long-term data and reviewsWhat the label's 12-month studies, long-term data, published trials and reviews measured, plus one 2023 review that reported a different result.Read guide →Research GuidesWho finasteride 1 mg is not for: women, children and pregnancy exposureWhat the Propecia label and the FDA say about women, pregnancy, children, handling and semen exposure.Read guide →Research GuidesHow finasteride works: the enzyme, DHT and what was measuredWhat the Propecia label and a 1999 study abstract say about finasteride, the Type II 5α-reductase enzyme and DHT, with each number tied to its source.Read guide →Research GuidesHow long finasteride takes to show results and what sources say about stoppingWhat the Propecia label reports about timing, the 12-month and 5-year study measures, and what it says happens after treatment is withdrawn.Read guide →Research GuidesMood and finasteride: what the sources say about depression and suicidal ideationThe label listings, cohort studies, reviews and spontaneous-report analyses on depression and suicidal ideation, and why none show cause and effect.Read guide →Research GuidesOther treatments for male pattern hair loss: what the sources sayWhat labels, reviews, trials and a Canadian consensus say about minoxidil, dutasteride, topical finasteride and low-level laser therapy.Read guide →Research GuidesSexual side effects of finasteride: what the label, trials and databases reportWhat the label, trials, reviews, a claims database and reports say about sexual side effects, with rates, study length and comparison groups.Read guide →Research GuidesWhat male pattern hair loss is and what drives itWhat MedlinePlus and review sources say about male pattern hair loss: the usual pattern, androgens and genes, and what else can cause hair loss.Read guide →Research GuidesWhen hair loss is not pattern loss: other causes and how they are foundOther causes of hair loss that MedlinePlus lists, and how review abstracts say clinicians tell them apart from pattern loss.Read guide →