Steroid cream potency scale

Treat infection if present; discontinue if infection persists or worsens. Do not use near eyes, or on diaper dermatitis or pre-existing skin atrophy. Do not use fluorinated steroids longer than 1 week on the face. Avoid abrupt cessation in chronic use. Systemic absorption increased by broken or inflamed skin, prolonged use, application to large surface area, or use of occlusive dressings. Occlude only if necessary; do not occlude higher potency products. Monitor adrenal function in children if a high potency product or occlusion is used, and in adults if more than 50g weekly of a high potency product is used. Discontinue or reduce dose or potency if HPA axis suppression, Cushing's syndrome, hyperglycemia, glucosuria, or irritation occurs. Use lowest effective dose and potency (esp. in children). Use caution if applying to face or body folds. Do not use continuously or for prophylaxis. Foams are flammable. Reevaluate periodically. Pregnancy (). Nursing mothers.

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.

Steroid cream potency scale

steroid cream potency scale

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