Finasteride: performance vs medical framing
Finasteride (performance) vs Finasteride (pharma)
The table compares the compounds’ key data from their entry pages. Open each compound’s full entry for details. Educational content, not medical advice.
| Finasteride (Propecia / Proscar) · performance | Finasteride · pharma | |
|---|---|---|
| What it is | Selective type-II 5α-reductase inhibitor. FDA-approved (Proscar 1992 BPH 5 mg, Propecia 1997 AGA 1 mg). In AAS: scalp DHT suppression to slow hair loss in genetically predisposed users. Type-I 5AR not inhibited. | 5α-reductase type II selective inhibitor. FDA-approved for androgenetic alopecia (Propecia 1 mg) and BPH (Proscar 5 mg). Reduces DHT formation by ~70%. |
| Mechanism of action | Selective type-II 5α-reductase inhibitor, ~70% scalp DHT suppression at 1 mg/day | Selective 5α-reductase type II inhibition, ~70% DHT reduction |
| Half-life | ~6 h parent, pharmacodynamic effect 24+ h enzyme inhibition | 5-6 h plasma, 96+ h enzyme affinity |
| Onset | DHT reduction measurable 24 h, hair stabilization 3-6 months | 3-6 months (hair stabilization), 6-12 months (regrowth) |
| Full entry | Open → | Open → |
What it is
Finasteride (Propecia / Proscar) · performanceSelective type-II 5α-reductase inhibitor. FDA-approved (Proscar 1992 BPH 5 mg, Propecia 1997 AGA 1 mg). In AAS: scalp DHT suppression to slow hair loss in genetically predisposed users. Type-I 5AR not inhibited.
Finasteride · pharma5α-reductase type II selective inhibitor. FDA-approved for androgenetic alopecia (Propecia 1 mg) and BPH (Proscar 5 mg). Reduces DHT formation by ~70%.
Mechanism of action
Finasteride (Propecia / Proscar) · performanceSelective type-II 5α-reductase inhibitor, ~70% scalp DHT suppression at 1 mg/day
Finasteride · pharmaSelective 5α-reductase type II inhibition, ~70% DHT reduction
Half-life
Finasteride (Propecia / Proscar) · performance~6 h parent, pharmacodynamic effect 24+ h enzyme inhibition
Finasteride · pharma5-6 h plasma, 96+ h enzyme affinity
Onset
Finasteride (Propecia / Proscar) · performanceDHT reduction measurable 24 h, hair stabilization 3-6 months
Finasteride · pharma3-6 months (hair stabilization), 6-12 months (regrowth)