5alpha-reductase inhibitors

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5α-reductase inhibitors

Drugs that inhibit the action of 5α-reductase, resulting in lower levels of prostatic dihydrotestosterone, the primary androgen in the prostate.
References in periodicals archive ?
The Risks and Benefits of 5a-Reductase Inhibitors for Prostate-Cancer Prevention.
They compared 2312 Icelandic men who underwent medical or surgical management for BPH (including treatment with 5a-reductase inhibitors, which are known to lower the PSA concentration) vs 33 779 presumed-healthy Icelandic men.
Use of 5a-reductase inhibitors for prostate cancer chemoprevention: American Society of Clinical Oncology/American Urological Association 2008 Clinical Practice Guideline.
Because of the ability of 5a-reductase inhibitors to inhibit the conversion of testosterone to DHT, finasteride may cause abnormalities of the external genitalia of a male fetus of a pregnant woman who receives finasteride.
The changes described above are expected pharmacological effects of drugs belonging to the class of 5a-reductase inhibitors and are similar to those reported in male infants with a genetic deficiency of 5a-reductase.