Medicines : their uses and mode of administration including a complete conspectus of the three British pharmacopoeias, an account of all the new remedies, and an appendix of formulae / by J. Moore Neligan.

  • Neligan, J. Moore (John Moore), 1815-1863.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Medicines : their uses and mode of administration including a complete conspectus of the three British pharmacopoeias, an account of all the new remedies, and an appendix of formulae / by J. Moore Neligan. Source: Wellcome Collection.

    34/632 (page 10)
    with tlie solution in hydrochloric acid. Magnesia is occasionally made to absorb water in order fraudulently to increase its weight, which may be thus augmented from ] 7 to even 40 per cent; this fraud may be detected by the loss of weight which occurs on exposure to a red heat. Chevallier states that in one instance he found it adulterated with flour, a sophistication readily detected by i its not being completely soluble in dilute hydrochloric acid. THERAPEUTICAL EFFECTS.—As an antacid magnesia is employed in dyspepsia, attended with acidity of the stomach and with consti- pation; in such cases it is generally preferred to the alkalies, as being less irritant, and as the combinations which it forms with the free acids of the stomach are gently laxative. In gastrodynia and heartburn, given in combination Avith some aromatic, a short time before the meals, it seldom fails to prove beneficial. It is also administered with much advantage in the acidity attendant on infantile diseases; in that of persons of a gouty and rheumatic diathesis, as it diminishes the quantity of uric acid in the urine; ' and in lithiasis. Magnesia is also used as an antidote in poisoning with the mineral acids, but its employment in such cases is objec- tionable, for during its combination with the acids, a degree of heat sufficient to destroy the mucous membrane of the stomach is pro- duced. In poisoning with arsenic it proves an efficacious antidote, for which purpose it should be administered suspended in water. (See Cathartics). DOSE AND MODE OF ADMINISTRATION.—Gr. x. to gr. xxx. twice or three times daily. It may be given suspended in milk, or in some aromatic water. INCOMPATIBLES.—Acids ; acidulous salts ; metallic salts ; and hydrochlorate of ammonia. Magnesia Carbonas, D. L. E. Magnesia carbonas pon- DEROSUM, D. Carbonate of 3Iagnesia. Heavy Carbonate of Mag- nesia. Magnesia Alba. PKEPAKATION.—Dublin.— Sulphate of magnesia of commerce, ten ounces; crys- tallized carbonate of soda of commerce, twelve ounces; distilled water, a sufficient quantity : dissolve each salt in two quarts of water, mix the two solutions cold, and boil the mixture for ten minutes. Transfer the precipitate to a calico filter, and pour upon it, repeatedly, boiling water, imtil the washings cease to give a precipitate with a solution of nitrate of barytes. Lastly, dry by a heat not exceeding 212°. London.— Take of sulphate of magnesia, Ihiv.; carbonate of soda, lt)iv. ^ix.; distilled water, boiling, cong. iv.; dissolve the carbonate and sulphate separately, each in two gallons of the water, and strain; then mix and boil the liquors, stirring constantly with a spatula for two hours, distilled water being frequently added, so that it may fill about the same measure. Lastly, the liquor being poured otf, wash the precipitate with boihng distilled water, and dry it. Edinburgh.— Take of sulphate of magnesia, Ibiv. ; carbonate of soda, ihiv. ^viii, ; water, four gallons; dissolve the salts separately, each in two gallons of the water ; mix the solutions, boil the mixture, and stir briskly for fifteen or twenty minutes. Collect the precipitate on a filter of calico or linen, wash it thoroughly with boiling water, and then dry it. Magnesioe carbonas ponderosum, D. Sulphate of magnesia of commerce, ten ounces; crystallized carbonate of soda