aza-steroid 3-oxo steroid finasteride http://purl.bioontology.org/ontology/MESH/D018120 http://purl.bioontology.org/ontology/RXNORM/25025 http://purl.bioontology.org/ontology/SNOMEDCT/386963006 http://purl.obolibrary.org/obo/CHEBI_5062 http://purl.obolibrary.org/obo/NCIT_C1099 https://en.wikipedia.org/wiki/Finasteride https://www.wikidata.org/wiki/Q424167 G04CB01 A synthetic 4-azasteroid compound. Finasteride competitively binds to and inhibits steroid type II 5-alpha-reductase in the prostate gland, liver, and skin, thereby interfering with the enzymatic conversion of testosterone to 5-dihydrotestosterone (DHT) and reducing serum DHT levels. The reduction in serum DHT levels results in diminished stimulation of androgen receptors in the nuclei of prostate cells and, so, diminished prostate cell proliferation. An aza-steroid that is a synthetic drug for the treatment of benign prostatic hyperplasia. An orally active 3-oxo-5-alpha-steroid 4-dehydrogenase inhibitor. It is used as a surgical alternative for treatment of benign prostatic hyperplasia. D11AX10 A medication used mainly to treat an enlarged prostate or hair loss in men. It can also be used to treat excessive hair growth in women and as a part of hormone therapy for transgender women. δ-lactam