Dr. Pereira's Elements of materia medica and therapeutics : abridged and adapted for the use of medical and pharmaceutical practitioners and students and comprising all the medicines of the British Pharmacopœia, with such others as are frequently ordered in prescriptions or required by the physician / edited by Robert Bentley and Theophilus Redwood ; with an appendix.

  • Jonathan Pereira
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Dr. Pereira's Elements of materia medica and therapeutics : abridged and adapted for the use of medical and pharmaceutical practitioners and students and comprising all the medicines of the British Pharmacopœia, with such others as are frequently ordered in prescriptions or required by the physician / edited by Robert Bentley and Theophilus Redwood ; with an appendix. Source: Wellcome Collection.

    67/1180 (page 35)
    combined with, sugar or gum, or in solution with some saccharine or mucilaginous substance, to which, an aromatic should be added. For an ordinary lotion one ounce may be dissolved in ten ounces of water. Emplastrum Ammonii Chloridi, Sal-Ammoniac Plaster. Take of Lead Plaster . » , . , * • 2 ounce. Soap „...,.,, 2 drachms. Melt them together, and when nearly cold, add:— Chloride of Ammonium in fine powder , • 2 drachm. This plaster is stimulant and rubefaciant. Its efficacy depends on the evolution of ammoniacal gas, in consequence of the action of the alkali of the soap upon the sal-ammoniac, hence it requires renewal every twenty^four hours. Trochisci Ammonii Chloridi. Sal-Ammoniac Lozenges. Lozenges containing two or three grains of chloride of am- monium, are employed in bronchitis. [§ Solution of Chloride of Ammonium. Take of Chloride of Ammonium , . 1 ounce, Distilled Water , . . .10 fluid ounces. Dissolve and filter.] Pharmaceutic Use.—As a test. [§ Ammonii Bromidum. Bromide of Ammonium. NH4Br or NH4Br.] This compound can be prepared either by neutralising ammonia with hydrobromic acid, or by first preparing bromide of iron, and then adding to this a solution of ammonia or carbonate of ammonia, as in making the iodide. [§ Characters.—In colourless crystals, which become slightly yellow by exposure to the air, and have a pungent saline taste. May be sublimed unchanged by the application of heat. Readily soluble in water; less soluble in spirit. A solution of the salt in water, mixed with mucilage of starch, and a drop of an aqueous solution of bromine or chlorine, does not exhibit any blue colour. Dose, 2 to 20 grains.] The last test indicates freedom from iodide. Therapeutics.—Effects similar to those of bromide of potassium. D 2