Elements of Materia Medica and Pharmacy Volume 1-2

Elements of Materia Medica and Pharmacy Volume 1-2

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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. 1804 edition. Excerpt: ...It is given in a dose of from 10 to 20 grains. MYRRH is the produce of Arabia and Abyflinia; the plant from which it is obtained is unknown. It is in small irregular pieces ofa brown colour, has a fragrant smell, and a warm bitter taste. It confists of gum and refin 5 'its virtues residing chiefiy in thc latter. Alkohol dissolves the refin. Water boiled on the myrrh dissolves the gum, to which part of the refin adheres, and this evaporated affords the vvatery extract. ss Myrrh is an expectorant, which has been regarded as too flimulating to be employed in pneumonic affections, or in phthisis, but which has been often employed in asihma and chronic catarrh. Its dose is from IO to 20 grains. The Watery extract which has been preferred by an injudicious preparation, as the myrrh is merely Weakened in power. The tincture of myrrh THIS balsam, obtained by exudation, is in brittle masses, composed of brown and White fragments; its smell is fragrant; it has little taste. It consists almost wholly of refin, and is therefore nearly entirely soluble in alkohol. _ It likewise contains a portion of a peculiar acid, which, as it exists in greater quantity in it than in any other vegetable matter, is named Acid of Benzoin. It is obtained from it by sublimation; is in white brilliant scales, retains the flavour of the benzoin, and with acidity has likewise a degree of pungency. dose of IO or Iggrains; but it is probably a medicine of little power., It enters into the si Composition composition of the ammoniated and camphora: ted tinctures of opium. Offic. Prejx-T: Benz: C. Ed. TOLU balsam is obtained from incisions in the trunk of the tree 3 it thickens, and in time becomes concrete 3 it cthas a fragrant odour, and a warm sweetish taste. It dissolves...show more

Product details

  • Paperback | 82 pages
  • 189 x 246 x 4mm | 163g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123674120X
  • 9781236741202