5-alpha-reductase

Dutasteride is a dual 5-a reductase inhibitor that inhibits conversion of testosterone to dihydrotestosterone (DHT).

Finasteride is a synthetic type II 5α-reductase inhibitor. This enzyme converts testosterone to dihydrotestosterone (DHT).

β-sitosterol reduces blood levels of cholesterol, and is sometimes used in treating hypercholesterolemia. β-Sitosterol inhibits cholesterol absorption in the intestine. When the sterol is absorbed in the intestine, it is transported by lipoproteins and incorporated into the cellular membrane.

Chlormadinone acetate is a steroidal progestin with additional antiandrogen and antigonadotropic effects, used often in combinations as an oral contraceptive.

Epristeride is a selective and specific uncompetitive inhibitor of human steroid 5 alpha-reductase isoform 2.

Finasteride (acetate) is an orally active testosterone 5-alpha-reductase inhibitor.

Finasteride Carboxaldehyde is a metabolite of Finasteride in human bile (M2 metabolite) that can be used for proteomics research.