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Pharmaceutical Name (substance): Finasteride [USAN:INN]
Common Brand, Trade, Commercial Denominations: Proscar, Propecia, Fincar, Finpecia, Finax, Finast, Finara, Finalo, Prosteride, Gefina, Appecia, Finasterid IVAX, Finasterid Alternova, Chibro-Proscar, Finastid, Prostide.
Manufacturers: Merck, Ajanta Pharma, Aleppo Pharmaceutical, Cipla, Dr. Reddy's, Intas Pharmaceuticals, Ranbaxy.
Chemical name: 17beta-(N-tert-butylcarbamoyl)-4-aza-5 alpha-androst-1-en-3-one
Index name: 4-Azaandrost-1-ene-17-carboxamide, N-(1,1-dimethylethyl)-3-oxo-, (5alpha,17beta)-
Molecular formula: C23-H36-N2-O2
Molecular weight: 372.549
Active Life: 24-48 hours
Bioavailability: 63%
Half life: elderly: 8 hours, adults: 6 hours
Excretion: feces (57%) and urine (39%) as metabolites
CAS number: 98319-26-7
Routes of administration: Oral
Drug Classification: Reductase Inhibitor
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