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Bog, hæftet The Administration of Drugs: A Guide for the Pharmaceutical Laboratory (Classic Reprint) af William Schleif

The Administration of Drugs: A Guide for the Pharmaceutical Laboratory (Classic Reprint)

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Excerpt from The Administration of Drugs: A Guide for the Pharmaceutical Laboratory

The amount of medicinal action obtained from any given drug depends upon the more or less complete manner in which it is absorbed, the rapidity with which this is effected, and to a less exten... Læs mere

Excerpt from The Administration of Drugs: A Guide for the Pharmaceutical Laboratory

The amount of medicinal action obtained from any given dr... Læs mere

Produktdetaljer:

Sprog:
Engelsk
ISBN-13:
9781334333248
Sideantal:
204
Udgivet:
01-11-2016
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Excerpt from The Administration of Drugs: A Guide for the Pharmaceutical Laboratory

The amount of medicinal action obtained from any given drug depends upon the more or less complete manner in which it is absorbed, the rapidity with which this is effected, and to a less extent, upon the rate with which it is eliminated. Absorp tion and elimination usually bear a definite ratio to each other, so that a substance which enters the circulation quickly will leave the system in a comparatively short space of time. Gases act most promptly, liquids rank next in efficiency, and solids are the slowest of all to produce their effect. The number of gases is limited, and a few very volatile liquids are so easily obtained in the state of vapor that they can be given by way of the lungs; but the largest number of both liquids and solids admit of but one route of introduction - that of the stomach. The full his tory of any drug placed in the stomach depends on its solubility in the gastric or intestinal ¿uids, and the rate with which it is excreted by the emunctories, chie¿y the kidneys, the lungs and the skin. Pharmacy obviously cannot in¿uence elimination, but it can materially assist the rapidity of absorption, and increase the medicinal value of a drug by presenting it in as soluble a form as possible, ready to enter the circulation when it is placed within the body. This soluble form is most perfectly attained by dissolving the drug in a liquid, preferably one which will mix readily with the contents of the stomach or bowel, which is unirritating and possesses no well-pronounced chemi cal action on the drug itself, nor marked medicinal effect on the system. Accordingly, solution is the best method of administer ing a drug internally, the few instances of gases and volatile liquids given by inhalation excepted. But this is not the only way in which drugs can be prescribed. They may be given in substance, in their natural, crude state, or in the form of powder, provided they possess the following characteristics: I. They should be tasteless, or at least have no disagreeable or nauseating effect on the palate.2. They must remain unaffected in air, neither attracting nor losing moisture.

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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.

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