Corticosteroides definicion medica

Este medicamento es sólo para uso externo. No lo ingiera por vía oral. Siga las instrucciones de la etiqueta del medicamento. Lávese las manos antes y después de usarlo. Aplique una pequeña capa sobre las zonas afectadas. No la cubra con un vendaje o apósito a menos que se lo indique su médico o su profesional de la salud. Evite que el medicamento entre en contacto con sus ojos. Si esto ocurre, enjuáguelos con abundante agua fría del grifo. Es importante que no utilice más medicamento que lo indicado. No utilice su medicamento con una frecuencia mayor a la indicada. Si lo hace aumentarán las probabilidades de sufrir efectos secundarios.

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.

Corticosteroides definicion medica

corticosteroides definicion medica


corticosteroides definicion medicacorticosteroides definicion medicacorticosteroides definicion medicacorticosteroides definicion medicacorticosteroides definicion medica