Corticosteroides sinteticos pdf

Corticosteroids have been used as drug treatment for some time. Lewis Sarett of Merck & Co. was the first to synthesize cortisone, using a complicated 36-step process that started with deoxycholic acid, which was extracted from ox bile . [43] The low efficiency of converting deoxycholic acid into cortisone led to a cost of US $200 per gram. Russell Marker , at Syntex , discovered a much cheaper and more convenient starting material, diosgenin from wild Mexican yams . His conversion of diosgenin into progesterone by a four-step process now known as Marker degradation was an important step in mass production of all steroidal hormones, including cortisone and chemicals used in hormonal contraception . [44] In 1952, . Peterson and . Murray of Upjohn developed a process that used Rhizopus mold to oxidize progesterone into a compound that was readily converted to cortisone. [45] The ability to cheaply synthesize large quantities of cortisone from the diosgenin in yams resulted in a rapid drop in price to US $6 per gram, falling to $ per gram by 1980. Percy Julian's research also aided progress in the field. [46] The exact nature of cortisone's anti-inflammatory action remained a mystery for years after, however, until the leukocyte adhesion cascade and the role of phospholipase A2 in the production of prostaglandins and leukotrienes was fully understood in the early 1980s.

Tome este medicamento por vía oral con un vaso de agua. Es mejor tomar este medicamento con el estómago vacío por lo menos 30 minutos hasta una hora antes de desayunar. Evite tomar antiácidos que contengan aluminio o magnesio, simeticona, secuestradores del ácidos biliares, carbonato de calcio, sulfonato de sodio de poliestireno, sulfato de hierro y sucralfato dentro de 4 horas de tomar este medicamento. No corte, triture ni mástique este medicamento. Siga las instrucciones de la etiqueta del medicamento. Tómelo a la misma hora todos los días. No tome su medicamento con una frecuencia mayor que la indicada.

Corticosteroides sinteticos pdf

corticosteroides sinteticos pdf


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