5-alpha-reductase inhibitors
A drug may be classified by the chemical type of the active ingredient or by the way it is used to treat a particular condition. Each drug can be classified into one or more drug classes.
5-Alpha-reductase inhibitors block the action of 5-alpha-reductase, the enzyme that converts testosterone into dihydrotestosterone, which has greater affinity for androgen receptors. The activity of 5-alpha-reductase inhibitors results in increased levels of testosterone and decreased levels of dihydrotestosterone.
5-Alpha-reductase inhibitors are used to treat baldness, prostate hyperplasia and prostate cancer.
| Drug Name |
Reviews | Avg. Ratings |
|
|---|---|---|---|
| dutasteride systemic (Pro, More...) |
14 Review(s) |
Rate It! | 7.8 |
| finasteride systemic (Pro, More...) |
11 Review(s) |
Rate It! | 6.7 |
| dutasteride/ tamsulosin systemic (Pro, More...) |
11 Review(s) |
Rate It! | 5.9 |
See also
Medical conditions associated with 5-alpha-reductase inhibitors:

