Materia medica and therapeutics / by Martyn Payne.

  • Paine, Martyn, 1794-1877.
Date:
1859
Catalogue details

Licence: Public Domain Mark

Credit: Materia medica and therapeutics / by Martyn Payne. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    obtained from each, or the acids, in combination with the two alkaline proximates, forming kinates and tan- nates. Quinia is whitish and flocculent; cinchonia white and crystaline. Dr. Duncan, jr., obtained the zinchonia in 1803, but it was not till 1820 that the two ilkaloids were fully ascertained by Pelletier and Cav- entou. A volatile oil is also yielded by the barks, upon which depends their aroma and peculiar odor. Their astringency is due to small quantities of Tannin, which occurs in the best kinds of cinchonas. A third alkaloid, called Aricina, agreeing considerably in its virtues with the other two, has been obtained from the Arica and Cusco Barks. Quinidina is supposed, also, to be a distinct alkaloid, but resembles quinia. It is yielded by most of the genuine cinchonas. All the vegetable substances of this group may be much improved by small additions of any one of the preparations of quinia. An economy may be thus some- times properly observed. Many of the minor substances may be also usefully combined. In their aspect, also, of Tonics, either the alkaloids or an infusion of bark may be often advantageously combined with other infusions of that group of remedies. 1. Quinine Disulphas. Disulphate of Quinine. Sul- phate of Quinine. Comp. Sulph. Acid, 9.17. Quinine, 74.31. Water, 1G.52 = 100. ft. Disulph. Quin., grs. xvj. ; Water, § ij.; Sulph. Acid, 4 to 10 drops ; M.—Syrup, wine, or alcohol, may be substituted for the water. The acid serves only to increase the solubility of the Disulphate by saturation.— Dose, 3 j. once in two to six hours ; in ordinary inter* mittents.