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Prednisolone has a relatively short half-life, ranging 2–4 hours. It also has a large therapeutic window, considering the dosage required to produce a therapeutic effect is a few times higher than what the body naturally produces. [14] Prednisolone is 70–90% plasma protein bound, it binds to proteins such as albumin. [14]
Prednisone is a prodrug and must be converted to prednisolone by the liver before it becomes active. [6] [7] Prednisolone then binds to glucocorticoid receptors, activating them and triggering changes in gene expression. [4] Prednisone was patented in 1954 and approved for medical use in the United States in 1955.
Methylprednisolone (Depo-Medrol, Medrol, Solu-Medrol) is a synthetic glucocorticoid, primarily prescribed for its anti-inflammatory and immunosuppressive effects. [4] [5] [6] It is either used at low doses for chronic illnesses or used concomitantly at high doses during acute flares.
Perhaps the confusion is in that prednisone is not the active drug: its metabolite prednisolone is the important agent, and it has a longer plasma half-life. Jack B108 21:17, 11 September 2010 (UTC) OK, but the article should mention that the half-life of prednisolone is more important than the half-life of prednisone.
The combination is then referred to as COP (cyclophosphamide, Oncovin, and prednisone or prednisolone) or CVP (cyclophosphamide, vincristine, and prednisone or prednisolone). As elderly patients have a greater risk of toxicity from the drugs, an option is to use an attenuated drug regimen, called miniCHOP.
Then change to oral hydrocortisone or cortisone as a single morning dose, and gradually decrease by 2.5 mg each week. When the morning dose is less than replacement, the return of normal basal adrenal function may be documented by checking 0800 cortisol levels prior to the morning dose; stop drugs when 0800 cortisol is 10 μg/dl.
Prednisolone acetate is acutely toxic with an LD50 of >240 mg/kg for a rat and 3500 mg/kg for a mouse. Effects may present delayed. Target organs include adrenal cortex, bones, and eyes. It is also a known teratogen. [3] Class B PPE should be worn when working with this chemical. Any contact with this chemical should be taken seriously and the ...
Steroid ring system.. This is a list of corticosteroids (glucocorticoids and mineralocorticoids) or derivatives of cortisol (hydrocortisone).Most esters of these corticosteroids are not included in this list; for esters, see here instead.
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