This page describes pharmacological agents that may have legal restrictions, side effects, and drug interactions in your jurisdiction. Information is for educational research only — consult a clinician before considering any compound.
Finasteride
The most-replicated, cheapest, most-effective hair-loss drug ever made.
Aliases (5)
Overview
What is Finasteride?
The most-replicated, cheapest, most-effective hair-loss drug ever made. Also the source of the most contentious adverse-effect controversy in cosmetic dermatology (PFS). For a 20yo with no hair loss, there is nothing to treat — WATCH-LIST until MPB onset, then topical first.
What to Expect
- Week 1Tolerability and dose-response.
- Week 2-4Early effect window.
- Week 4-8Peak benefit assessment.
- Week 8+Cycle decision point.
Side Effects & Safety
- Common (1-5%): decreased libido, erectile dysfunction, decreased ejaculate volume, gynecomastia (rare), depression (small RR vs placebo in pooled trials).
- Reversible on discontinuation: most cases resolve within weeks to months.
- Rare-permanent (PFS): persistent sexual, mood, cognitive symptoms. Unpredictable. No reliable recovery treatment.
How was your experience with this compound?
Anonymous · one vote per session · results below at 5+ votes.
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