2D 3D
	ID	DDInter736
	Drug Type	small molecule
	Molecular Formula	C23H36N2O2
	Molecular Weight	372.544
	CAS Number	98319-26-7
	Description	Finasteride is a synthetic 4-azasteroid compound [L10565] and specific inhibitor of steroid Type II 5α-reductase, which is an intracellular enzyme that converts the androgen testosterone into 5α-dihydrotestosterone (DHT). It works in a similar fashion as [dutasteride], which is another 5-alpha-reductase inhibitor, by exerting antiandrogenic effects. Finasteride is an orally active drug that was first approved by the FDA in 1992 for the treatment of benign prostatic hyperplasia to improve symptoms and reduce the risk for acute urinary retention or the need for surgical procedures.[L6244,L10565] In 1998, it was approved by the FDA to treat male pattern hair loss.[L6244] Finasteride is commonly marketed under the brand names Propecia and Proscar to be used aloneo or in combination with [doxazosin], an alpha-blocker. Both benign prostatic hyperplasia and androgenic alopecia are androgen-dependent disorders that are characterized by _in situ_ high levels of DHT.[A178159] In the treatment of benign prostate hyperplasia, alpha-blockers such as [tamsulosin] and [terazosin] are also used. Compared to alpha-blockers that focus on providing the rapid relief of symptoms, 5α-reductase inhibitors aim to target the underlying disease by blocking the effects of the primary androgen involved in benign prostate hyperplasia and androgenic alopecia, thus reducing the risk for secondary complications while providing symptom control.[A2132]
	ATC Classification	D11AX10 G04CA51 G04CB01
IUPAC Name	(4aR,4bS,6aS,7S,9aS,9bS,11aR)-N-tert-butyl-4a,6a-dimethyl-2-oxo-1H,2H,4aH,4bH,5H,6H,6aH,7H,8H,9H,9aH,9bH,10H,11H,11aH-indeno[5,4-f]quinoline-7-carboxamide
InChI	DBEPLOCGEIEOCV-WSBQPABSSA-N
Canonical SMILES	[H][C@@]12CC[C@H](C(=O)NC(C)(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC[C@@]2([H])NC(=O)C=C[C@]12C
Useful Links	DrugBank ChEBI PubChem Substance KEGG Drug ChemSpider BindingDB PharmGKB Therapeutic Targets Database Wikipedia ChEMBL ZINC