Drugs and Medicines of North America: A Publication Devoted to the Historical and Scientific Discussion of the Botany, Pharmacy, Chemistry, and Therapeutics of the Medicinal Plants of North America. Vol. 1: Ranunculaceae

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Lloyd, 1885 - 162 pages
 

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Page 191 - Drugs and Medicines of North America. A Quarterly, devoted to the Historical and Scientific Discussion of the Botany, Pharmacy, Chemistry, and Therapeutics of the Medicinal Plants of North America, their Constituents, Products, and Sophistications.
Page 41 - ... filter it. Add to the filtrate a slight excess of sulphuric acid, and collect the precipitated mono-berberine sulphate on a filter. Repeat this operation twice, and then dissolve the salt in boiling alcohol and crystallize it. Description of Mono- Berberine Sulphate. — Excepting chromate of berberine, this sulphate of berberine is the darkest salt of the alkaloid known to us. When crystallized from a quickly cooled solution in boiling alcohol it forms beautiful groups of acicular crystals which,...
Page 156 - IB grains of the Combined CP Bromides of Potassium, Sodium, Calcium, Ammonium and Lithium. USES: EPILEPSY, and all CONGESTIVE, CONVULSIVE, and REFLEX NEUROSES.
Page 157 - DRUGS AND MEDICINES OF NORTH AMERICA: A Quarterly Devoted to the Historical and Scientific Discussion of the Botany, Pharmacy, Chemistry and Therapeutics of the Medicinal Plants of North America — their Constituents, Products and Sophistications.
Page 96 - ... will not become turbid. It will not ferment, and the freezing point is much less than that of water. It contains all of the alkaloids and acids of hydrastis, in their natural combinations." Tincture of Hydrastis. — This is officinal, as follows: "Hydrastis, in No. 60 powder, twenty parts. Diluted alcohol, a sufficient quantity. To make one hundred parts. "Moisten the powder with fifteen parts of diluted alcohol, and macerate for twenty-four hours ; then pack it in a cylindrical percolator,...
Page 98 - We have never known it to produce a perceptible increase in any of the secretions of the system, nor has it the slightest stimulating qualities. But we have uniformly found it to lessen the frequency and force of the pulse, to soothe pain, and allay irritability.
Page 60 - ... warm water, and crystallized colorless upon cooling. These were anhydrous, fused at about 183 C., but underwent decomposition by the application of heat. An analysis of this substance demonstrated that it had the composition C^H^ (C2H5), NO6HI, and was evidently the hydriodate of ethyl-hydrastine. Since this compound was formed by the substitution of the ethyl radical (C2H5), for one atom of hydrogen of the molecule of hydrastine, Prof. Power considers hydrastine to be a secondary or imide...
Page 57 - ... foursided prisms (Fig. 41 and 42), and apparently belong to the ortho-rhombic system, although the goniometer at my disposal did not admit of the exact measurement of the angles. The drawings here presented, which represent typical crystals, were formed by Crystals of Hydrastine (enlarged and perfected by Prof. FB Power). making an Orthographic prOjection, and the angles may be said to be as geometrically accurate as is possible to obtain them without absolute measurements. In Fig. 42 the terminal...
Page 56 - Durand's paper was written in the summer of 1850, and published in 1851. • Association, 1884, and we shall make many references to this admirable treatise. Preparation. — Hydrastine has always been made by decomposing the natural salt by means of an alkali. We introduce the process contributed by us to Prof. Power, by which we prepared the alkaloid examined by that gentleman, it is as follows : ' ' One thousand pounds of powdered Hydrastis canadensis were properly moistened with alcohol, packed...
Page 48 - ... excess of alcohol to remove all traces of adhering free acid, cooled, and mixed with its bulk of ether. The precipitate that formed was again thrown on a new filter and washed with a mixture of alcohol and ether until it was found to be free from uncombined phosphoric acid. Gravimetric Estimation. — An amount of the alkaloid berberine weighing 0.460 grams was dissolved in absolute alcohol and treated as we have described. The liquids and washings were mixed and distilled water added ; the ether...

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