"Dutasteride is a 6-azasteroid, which inhibits both type 1 and type 2 5α-reductase isoenzymes. The IC50 for type 1 5α-reductase is 0.7 and 81.0 nm for dutasteride and finasteride, respectively, and for type 2 5α-reductase, 0.05 and 0.16 nm, respectively."
Marked Suppression of Dihydrotestosterone in Men with Benign Prostatic Hyperplasia by Dutasteride, a Dual 5α-Reductase Inhibitor
Dihydrotestosterone (DHT) is the primary metabolite of testosterone in the prostate and skin. Testosterone is converted to DHT by 5α-reductase, which exists in
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