A Digest of Materia Medica and Pharmacy

A Digest of Materia Medica and Pharmacy

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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. 1883 edition. Excerpt: ... Gonstituents.--An alkaloid, lobelina, and an acid, lobelic acid, which are probably combined in the drug; resin, wax, and gum are found in the herb. The seeds contain a larger proportion of the active medicinal constituents than the herb, and about 30 per cent. of fixed oil in addition. Lobelina is liquid, of yellow color, aromatic odor, acrid taste, soluble in alcohol, ether, and, to a less extent, in water. It is altered by exposure to a boiling temperature, or by long exposure to the air. Its salts are more permanent, soluble in water, and those with the mineral acids are crystallizable. Lobelic acid is crystallizable and soluble in alcohol, water, and ether. An acrid principle, lobelacrin, has been described; it is considered by some observers as lobelate of lobelina. Preparations.--From the leaves and tops: A tincture, -', as in Sec. 42, Part I. A tincture,, as in Sec. 45, Part I. p A vinegar, T'%, from the recently dried leaves and tops, as in Sec. 14, Part I. Tinct. Lobelia, U. S. P., is of strength, and Acetum Lobeliae, U. S. P., 56. From the ripe seeds: A tincture B', with alcohol, as in Sec. 40, Part I. '5" h 1 s P 1 A tincture, 1, with alco 0, as in ec. 43, art. An oleo-resin, 41-," with alcohol, as in Sec. 25, Part I. Uses.--Lobelia is a vital stimulant of great power, when properly used. In small doses, it increases arterial pressure, acting as a vaso I motor stimulant, and, through the sympathetic nervous system, increases the activity of all vegetative processes. Thus employed, it is a useful remedy in conditions characterized by vascular enfeeblement, fulness and want of elasticity in tissue, oppression of respiration with sense of weakness in the epigastrium, and feeble, ...show more

Product details

  • Paperback | 206 pages
  • 189 x 246 x 11mm | 376g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236774647
  • 9781236774644