Finasteride / working resource

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How finasteride works

Finasteride for male pattern hair loss, with the evidence and its limits in plain view. What should I know about how finasteride works?

The Finasteride Male Pattern Hair Loss Study Group reported clinically significant increases in hair count (baseline = 876 hairs), measured in a 1-inch diameter circular area (5.1 cm2) of balding vertex scalp, with finasteride treatment: 107 and 138 hairs vs placebo at 1 and 2 years (P < .001).
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What should I know about how finasteride works?What should I know about the side effects the label lists?What should I know about PSA tests while taking it?Which evidence applies to the exact Finasteride formulation being considered?What alternatives address the same goal, and what evidence supports them?Which risks, interactions and uncertainties matter for this decision?What would count as a useful outcome, and when would it be reassessed?Who should I contact if I have a problem or an unresolved question?The specific goal or uncertainty I want to discuss

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