Obs. The above are reputed alterative, tonic, and antiperiodic.—Dose, 1 to 4 gr.; in obstinate intermittents, and in the scrofulous affections of debilitated subjects.
Quinine, Hydrochlo′′rate of. Syn. Chloride of quinine, Muriate of quinine†; Quinæ hydrochloras, Quinæ murias, L. Prep. 1. By neutralising dilute hydrochloric acid with the base, as above.
2. (Ph. Bor.) Chloride of barium, 5 dr.; boiling water, 1 lb.; dissolve, add, gradually, of sulphate of quinine, 2 oz.; boil gently for a few minutes, filter the solution whilst hot, and set it aside that crystals may form.
3. (Quinæ murias—Ph. D.) Dissolve chloride of barium, 123 gr., in distilled water, 2 fl. oz.; add of sulphate of quinine, 1 oz., dissolved in boiling water, 11⁄2 pint; mix, evaporate the solution to one half, filter, and again evaporate until spiculæ begin to appear; next allow the liquid to cool, collect the crystals, and dry them on bibulous paper. The mother liquor, by further concentration and cooling, will yield an additional product.
Obs. Hydrochlorate of quinine occurs in snow-white groups of feathery crystals, of a mother-of-pearl lustre, which are more freely soluble than those of the disulphate.
Quinine and Iodide of Iron. Syn. Quinæ
et ferri iodidum. (Bouchardat.) Prep. Pour a strong solution of acid sulphate of quinine into a fresh solution of iodide of iron; collect the precipitate, dry it quickly by pressing it between blotting paper, and keep it from the air.
Quinine, Ki′nate of. Syn. Quinæ kinas, L. Prep. By saturating a solution of kinic acid with quinine, and purifying by crystallisation out of alcohol. The kinate of quinine is obtained in crystalline warts, soluble in 4 parts of water and 8 parts of alcohol.
Quinine, Lac′tate of. Syn. Quinæ lactas, L. Prep. As the ACETATE or CITRATE. By spontaneous evaporation fine crystals may be obtained. Said to agree better with dyspeptic patients than the other salts of quinine.
Quinine, Mu′′riate of. Hydrochlorate of quinine (see above).