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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1809 edition. Excerpt: ...the standard. Doses distinguish, we have said, medicines from poii sons; and, on the other hand, aliment from remedies. Minute attention is, however, requisite in many cases since it is not improbable that the specific action of remedies depends on their doses. Our experience with' mineral waters shows that some medicines, in a small and minutely divided quantity, are more effectual than in larger doses, and in a more concentrated state. We cannot imitate in any other way the tonic elfecta of iron, or the laxative powers of neutral salts in proportions so small; and it is highly probable that if we ever find the exhibition of factitious airs highly beneficial, it will be in much' smaller quantities than have been hitherto exhibited. Injudicious, particularly young, eager, practitioners having once learnt that a remedy has a peculiar power, think that power will he necessarily augmented with the dose; and if they are capable of distinguishing, a faculty not quite so general as may be reasonably supposed, they soon perceive their error. Camphor, for instance, in a dose of five or six grains is a mild sedative, and often a diaphoretic, in fevers; in a dose of twenty grains it frequently produces nausea, iucreaes the heat, and proves highly injurious. Opium in too large doses prevents instead of promoting sleep, and acts rather as a stimulus on the bowels than a narcotic The laudanum purgans of an old pharmacopccia owes its laxative virtue rather to the dose than the addition which it receives, calculated chiefly to prevent its being rejected by vomiting. In fact, every medicine beyond its proper dose is usually the source of considerable inconvenience, promoting generally increased or irregular actions Amica-Arseuicurn...show more

Product details

  • Paperback | 892 pages
  • 189 x 246 x 45mm | 1,560g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236784227
  • 9781236784223