Medicines : their uses and mode of administration / by J. Moore Neligan.

  • John Neligan
Date:
1864
Catalogue details

Licence: Public Domain Mark

Credit: Medicines : their uses and mode of administration / by J. Moore Neligan. Source: Wellcome Collection.

    50/796 (page 16)
    ]G ANTACIDS. any di ute tlnemM ’’“S °° ‘he addition of and tV ■•. adulterated with lime pleteiv in diliiTeT'h contains silica, it will not dissolve com- tion n L fflul Jc H° P>-csent, the solu- i;m« dilute acd precipitates with excess of ammonia- and if lime IS present, solution of oxalate of ammonia, or oT t^bicart dilute acid P>-“ipi“c with the solution iu the line acid, bulphate of magnesia sometimes exists in it • this is ? solution m hydrochloric acid. Magnesia is oecasinTinllv made to absorb water in order fraudulently to increase its weii^hf jvhich may be thus augmented from 17 toLen 40 per cent • this fraud may be detected by the loss of weight which o^ccum o^xpo- it adulterated Chevallier states that in one instance he found adulterated with flour, a sophistication readily detected bv its not bemg completely soluble in dilute hydrochlom acid or by the addition of iodine striking with the flour a blue colour ^ _ THERAP^TICAL effects.—As an antacid, magnesia is emnlovpd in dyspepsia attended with acidity of the stomach and mth ?onIti- ]3ation; m such cases it is generally preferred to the alkalies as being lej irritant, and as the combinations which it forms with ’the free acids of the stomach are generally laxative. In gasTrodynia tTme d ?5^bination with some aromatic a sLrt me before the meals, it seldom fails to prove beneficial It is also iwTuH in the acidity attendant on nfantile diseases ; in that of persons of a gouty and rheumatic diathesis, as it diminishes the quantity of uric acid in the urine • 1 used as an antidote in poisoning fio?nn ® “liberal acids, but its employment in such cases is objec- tionable for, during Its combination with the acids, a degree of Imat sufficient to destroy the mucous membrane of the stomach is pro- duced In poisoning with arsenic it proves an efficacious antidote DOSE AND MODE OF ADMINISTRATION.—Gr. x. to gr. xxx. twice suspended in milk, in some of the_ bitter vegetable infusions, or in some aromatic water. In prescribing it, practitioners should always bear in mind the dano-er after long continued use, of its forming concretionsi n the alimen- tary canal, depending, as it does, for its elimination on the amount of acids which it may meet in the primse vias. Many cases are on record where large masses have been met with in the intestines ag'glutinated together with intestinal mucus, months after its ad- ministration had been discontinued. Although the two forms are in- troduced into the Pharmacopoeia, I am not satisfied as to the exist- ence of any marked difference in their physiological effects or thera- peutic uses. The lighter variety (Magnesia levis) is that employed X icvi&y it, uiai empioyea m the preparation of the Pulvis Rliei Compositus. A jweparation