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.

    1120/1180 (page 1088)
    [§ Liquor Magnesias Citratis. Solution of Oitrate of Magnesia. Take of Carbonate of Magnesia .... 100 grains. Citric Acid ...... 200 grains. Syrup of Lemons . . . . -| fluid ounce. Bicarbonate of Potash, in crystals . . 40 grains. Water ....... a sufficiency. Dissolve the citric acid in two ounces of the water, and, having added the carbonate of magnesia, stir until it is dissolved. Filter the solution into a strong half-pint bottle, add the syrup and suffi- cient water to nearly fill the bottle, then introduce the bicarbonate of potash, and immediately close the bottle with a cork which should be secured with string or wire. Afterwards shake the bottle until the bicarbonate of potash has dissolved. Dose.—5 to 10 fluid ounces.] A preparation similar in nature to this has long been used in Prance, and is ordered in the French Codex under the name of Limonade 'purgative au Citrate de Magnesie ; and a formula is given for a similar mixture in the United States Pharmacopoeia under the name of Liquor Magnesim Citratis ; but in both cases the proportions of the ingredients are very different from those ordered here. The purgative lemonade of the French Codex contains one fourth of its volume of syrup, and the solution of the United States Pharma- copoeia contains one-sixth of syrup and nearly twice as much citrate of magnesia as is contained in an equal volume of the solution ordered in the British Pharmacopoeia. Physiological Effects and Uses.—In doses of from 5 to 10 fluid ounces, it forms a mild and agreeable purgative draught. [§ Oleum Phosphoratum. Phosphorated Oil. Take of Phosphorus •),>■, ™ . Oil of Almonds . / °f each a sufficiency. Heat the oil in a porcelain dish to 300°, and keep it at this temperature for about fifteen minutes, then let it cool, and filter it through paper. Put 4 fluid ounces of this oil into a stoppered bottle, capable of holding 4\ flnid ounces, and add to it 12 grains of phosphorus. Immerse, the bottle in hot water until the oil has acquired the temperature of 180°, removing the stopper two or three times to allow the escape of expanded air; then shake the oil and phosphorus together until the latter is entirely dissolved. Characters.—A clear and colourless or but slightly coloured oil; phosphorescent in the dark. Dose.—5 to 10 minims.]