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Pharmacology

By J. Rick Turner

ISBN-10: 047007373X

ISBN-13: 9780470073735

ISBN-10: 0470174331

ISBN-13: 9780470174333

This ebook acquaints scholars and practitioners within the comparable fields of pharmaceutical sciences, scientific trials, and evidence-based medication with the required learn layout thoughts and statistical practices so they can know the way drug builders plan and assessment their drug improvement. pursuits of the e-book are to make the cloth obtainable to readers with minimum historical past in study and to be effortless sufficient for self-taught reasons. via bringing the subject from the early discovery part to medical trials and clinical perform, the publication offers an crucial assessment of an another way complicated and fragmented set of themes. The author’s event as a revered scientist, instructor of records, and one that has labored within the medical trials area makes him well matched to put in writing this sort of treatise.

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Example text

The best-characterized receptors are regulatory proteins. Regulatory proteins mediate the actions of endogenous messengers such as neurotransmitters and hormones, and this class of receptors mediates the effects of many of the most useful therapeutic agents (Bourne and von Zastrow, 2004). 2 The Pharmacodynamic Phase Pharmacodynamics is the study of the effect that a drug has on the body, such as lowering blood pressure (Mitscher and Dutta, 2006). The pharmacodynamic phase begins once the drug molecule reaches the microenvironment of its target receptor.

It also meant that bringing a drug to market in various countries took longer than necessary, delaying its availability to patients. Harmonization of regulatory requirements was pioneered by the European Community (now the European Union) in the 1980s, as it moved towards the development of a single market for pharmaceuticals. The success achieved in Europe demonstrated that harmonization was feasible. The harmonization process was then extended to include Japan and the United States. The ICH was formed from a government body and an industry association from each of these regions.

In drug therapy there are three phases that need to be considered: the pharmaceutical phase, in which a drug molecule is administered to the body; the pharmacokinetic phase, during which the drug molecule travels around the body to the vicinity of its target receptor; and the pharmacodynamic phase, in which the drug molecule interacts with the target receptor. These are considered here in reverse order. Before doing this, however, we will address the concept of a receptor, since receptors feature prominently in future discussions.

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New Drug Development: Design, Methodology, and Analysis by J. Rick Turner


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