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SPECTROPHOTOMETRIC METHODS FOR THE ESTIMATION OF VALSARTAN IN BULK AND
SPECTROPHOTOMETRIC METHODS FOR THE ESTIMATION OF VALSARTAN IN BULK AND

... Fig. 3: AUC Method C: First derivative9 Derivative spectrophotometry involves the conversion of normal spectrum to its first, second or higher derivative spectrum. The first derivative (D1) spectrum is the plot of the rate of change of absorbance with wavelength against wavelength i.e., the plot of ...
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... molecular weight alcohols isolated from sugar cane, helps reduce cholesterol levels by inhibiting its synthesis within the body. In test tube studies, scientists observed that policosanol also enhanced processing of LDL cholesterol. A review of scientific literature published in the February 2002 ed ...
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... M onolithic matrix tablets of Trimetazidine Dihydrochloride were formulated as modified release tablet employing hydroxyl propyl methyl cellulose polymer, and the modified release behaviour of fabricated tablets was investigated. M odified release matrix tablets contain 35.3 mg Trimetazidine Dihydro ...
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... media [35], and parallel flows of viscous Maxwell fluids [1] are just some of the phenomena governed [8,19] by Eq.(1). In [2], a numerical scheme for solving the secondorder one-space-dimensional linear hyperbolic equation has been presented by using the shifted Chebyshev cardinal functions. Dehghan ...
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... Flavonoids, ubiquitous polyphenolic compounds found in plants, have been part of the human diet throughout the course of evolution. More than 4000 distinct, natural flavonoids have been identified thus far and have been consumed as part of common foods, teas, wines, traditional medicines and pharmac ...
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...  at first, drug conc is monitored every 2 to 3 days, to make sure that it’s metabolism is not remarkably different from values estimated theoretically,(in acute cases).  within a period of 5 to 7 days , and it was found that phenytoin conc didn’t change , drug monitoring can be done every week or ...
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... gain, however, and many of the drugs’ FDA-approved package inserts acknowledge this effect. Two-thirds of patients with major depression present with weight loss, and gaining weight can be associated with successful treatment. Weight gain is of concern—and likely to be drug-induced—if it exceeds the ...
Consumer Updates > HCG Diet Products Are Illegal
Consumer Updates > HCG Diet Products Are Illegal

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Plateau principle

The plateau principle is a mathematical model or scientific law originally developed to explain the time course of drug action The principle has wide applicability in pharmacology, physiology, nutrition, biochemistry and system dynamics. It applies whenever a drug or nutrient is infused or ingested at a relatively constant rate and when a constant fraction is eliminated during each time interval. Under these conditions, any change in the rate of infusion leads to an exponential increase or decrease until a new level is achieved. This behavior is also called an approach to steady state because rather than causing an indefinite increase or decrease, a natural balance is achieved when the rate of infusion or production is balanced by the rate of loss.An especially important use of the plateau principle is to study the renewal of tissue constituents in the human and animal body. In adults, daily synthesis of tissue constituents is nearly constant, and most constituents are removed with a first order reaction rate. Applicability of the plateau principle was recognized during radiotracer studies of protein turnover in the 1940s by Rudolph Schoenheimer and David Rittenberg. Unlike the case with drugs, the initial amount of tissue or tissue protein is not zero because daily synthesis offsets daily elimination. In this case, the model is also said to approach a steady state with exponential or logarithmic kinetics. Constituents that change in this manner are said to have a biological half-life.A practical application of the plateau principle is that most people have experienced ""plateauing"" during regimens for weight management or training for sports. After a few weeks of progress, one seems unable to continue gaining in ability or losing weight. This outcome results from the same underlying quantitative model. This entry will describe the popular concepts as well as development of the plateau principle as a scientific, mathematical model.In the sciences, the broadest application of the plateau principle is creating realistic time signatures for change in kinetic models (see Mathematical model). One example of this principle is the long time required to effectively change human body composition. Theoretical studies have shown that many months of consistent physical training and food restriction are needed to bring about permanent weight stability in people who were previously overweight.
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