Download or read book Practical Standardization by Chemical Assay of Organic Drugs and Galenicals written by Albert Brown Lyons and published by . This book was released on 1920 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Standardization by Chemical Assay of Organic Drugs and Galenicals Classic Reprint written by A. B. Lyons and published by . This book was released on 2015-07-06 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Practical Standardization by Chemical Assay of Organic Drugs and Galenicals By standardization of a drug or medicinal preparation we mean bringing it to a definite strength as regards its medicinal activity. There are two ways in which this may be attempted. We may either make a direct trial of the effect produced by the medicine, administered under certain specified conditions, or we may ascertain if possible what is the active constituent of the drug, and then determine by assay the proportion of this constituent present in the sample under examination. The former method is empirical of course, but not on that account necessarily unscientific. The practical difficulty in endeavoring to apply it is that we have to deal with the reactions of a living organism to influences the nature of which is at best imperfectly understood. It is evident that we cannot hope to secure anything like identity in the conditions under which our experiments must be made, and the assumption that the reactions observed in a subject in normal health are not radically different from those under which drugs produce their therapeutic effects in illness is to say the least, a questionable one. Further it is obviously impracticable to employ the human subject in experiments of this character and the inferences deduced from experiments on the lower animals may easily be exceedingly misleading. Hence it is only to a very limited extent that the so-called biological method of assay is practised. The U. S. Pharmacopoeia gives it precognition, it is true, but in only one instance does it make a biological assay mandatory, and even in that instance offers a standard so vague that experts disagree widely in the results they report. Standardization of any drug implies the possibility of a reasonably exact determination of its active constituent or constituents. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Practical Standardization by Chemical Assay of Organic Drugs and Galenicals written by Albert Brown Lyons and published by Palala Press. This book was released on 2016-05-21 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book PRAC STANDARDIZATION BY CHEMIC written by A. B. (Albert Brown) 1841-1926 Lyons and published by Wentworth Press. This book was released on 2016-08-28 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Journal of Pharmaceutical Sciences written by and published by . This book was released on 1920 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1912-45 include proceedings of the association's annual meeting.
Download or read book Van Nostrand s Chemical Annual written by and published by . This book was released on 1922 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt: The issues for 1907 and 1909 contain a "Review of chemical literature."
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Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1922 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Merck Report written by and published by . This book was released on 1915 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
