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[20] [21] [22] In the United States, the Food and Drug Administration (FDA) has advised that over-the-counter PPIs, such as Prilosec OTC, should be used no more than three 14-day treatment courses over one year. [23] [24] Despite their extensive use, the quality of the evidence supporting their use in some of these conditions is variable.
Omeprazole was first made in 1979 by Swedish AB Hässle, part of Astra AB. It was the first of the proton pump inhibitors (PPI). It was the first of the proton pump inhibitors (PPI). [ 62 ] [ 63 ] Astra AB , now AstraZeneca, launched it as an ulcer medicine under the name Losec in Sweden.
Some open access journals (under the gold, and hybrid models) generate revenue by charging publication fees in order to make the work openly available at the time of publication. [ 76 ] [ 26 ] [ 27 ] The money might come from the author but more often comes from the author's research grant or employer. [ 77 ]
Downloadable Magazines - the magazines can be download in PDF format and can view it online every where . most of them are free magazines. Pages in category "Downloadable magazines" The following 25 pages are in this category, out of 25 total.
A derivative of timoprazole, omeprazole, was discovered in 1979, and was the first of a new class of drug that control acid secretion in the stomach, a proton pump inhibitor (PPI). [11] [12] Addition of 5-methoxy-substitution to the benzimidazole moiety of omeprazole was also made and gave the compound much more stability at neutral pH. [6]
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.
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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]