Finasteride (Form 1)

Mecanismo de acción

Finasteride is a competitive and specific inhibitor of Type II 5 alpha-reductase, an intracellular enzyme that converts the androgen testosterone into DHT. Two distinct isozymes are found in mice, rats, monkeys, and humans: Type I and II. Each of these isozymes is differentially expressed in tissues and developmental stages. In humans, Type I 5 alpha-reductase is predominant in the sebaceous glands of most regions of skin, including scalp, and liver. Type I 5alpha-reductase is responsible for approximately one-third of circulating DHT. The Type II 5alpha-reductase isozyme is primarily found in prostate, seminal vesicles, epididymides, and hair follicles as well as liver, and is responsible for two-thirds of circulating DHT. In humans, the mechanism of action of finasteride is based on its preferential inhibition of the Type II isozyme. Using native tissues (scalp and prostate), in vitro binding studies examining the potential of finasteride to inhibit either isozyme revealed a 100-fold selectivity for the human Type II 5alpha-reductase over Type I isozyme (IC50=500 and 4.2 nM for Type I and II, respectively). For both isozymes, the inhibition by finasteride is accompanied by reduction of the inhibitor to dihydrofinasteride and adduct formation with NADP+. The turnover for the enzyme complex is slow (t1/2 approximately 30 days for the Type II enzyme complex and 14 days for the Type I complex). Inhibition of Type II 5 alpha-reductase blocks the peripheral conversion of testosterone to DHT, resulting in significant decreases in serum and tissue DHT concentrations. In men with male pattern hair loss (androgenetic alopecia), the balding scalp contains miniaturized hair follicles and increased amounts of DHT compared with hairy scalp. Administration of finasteride decreases scalp and serum DHT concentrations in these men. The relative contributions of these reductions to the treatment effect of finasteride have not been defined. By this mechanism, finasteride appears to interrupt a key factor in the development of androgenetic alopecia in those patients genetically predisposed

Indicación

PROPECIA is a 5α-reductase inhibitor indicated for the treatment of male pattern hair loss (androgenetic alopecia) in MEN ONLY PROPECIA is not indicated for use in women

Experiencia de Dr. Reddy

Con sede en Hyderabad, India, Dr. Reddy's Laboratories es uno de los principales proveedores de ingredientes farmacéuticos activos (API) a nivel mundial. El negocio API de Dr. Reddy es considerado como un socio preferido de las compañías farmacéuticas en los Estados Unidos, Europa, Brasil, América Latina, Japón, China, Corea y los mercados emergentes.

El negocio de API de Dr. Reddy se nutre de las fortalezas técnicas profundas establecidas en los últimos 30 años en el desarrollo y fabricación de API complejas como esteroides, péptidos, moléculas complejas de cadena larga y API altamente potentes (HPAPI / medicamentos oncológicos). Esta experiencia se complementa con nuestra destreza en propiedad intelectual y asuntos regulatorios que nos ayudan a cumplir y superar los estándares regulatorios de manera consistente. Los APIs de Dr. Reddy´s Finasteride (Form 1) es el resultado de la amplia experiencia en R&D, IP y Normatividad Aplicable.

Un componente clave para ayudar a nuestros clientes a ser los primeros en comercializar es una cadena de suministro receptiva. Logramos esto al asegurarnos de que todas nuestras instalaciones funcionen de manera eficiente y con los últimos estándares de calidad, seguridad y productividad. Una fuerte interconexión entre las empresas y las fábricas permite una reacción rápida a los cambios dinámicos del mercado, de modo que podamos evitar la escasez y satisfacer los repentinos aumentos de la demanda.