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.

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    beneatli the surface of the water until no particles of phosphorus are visible, the temperature of the water being maintained at or near to 140°. Add now the wax, and as it softens mix it thoroughly with the other ingredients. Allow the mass to cool without being exposed to the air, and keep it in a bottle immersed in cold water. It may be softened with a few drops of rectified spirit when made into pills. Dose.—3 to 6 grains.] In this process the solution of the phosphorus in the balsam of Tolu is effected with ease and safety by the method indicated, as both substances are heavier than water, and they can be rubbed together without exposure to the air. The wax may also be easily mixed with the other ingredients beneath the surface of the water, by causing it to adhere to the end of the pestle when it has softened and before it has melted, and then rubbing it with the other in- gredients. The phosphorus is thus diluted to a sufficient extent to render its administration safe while it remains unoxidised, and it can be kept in this state immersed in water in the same way as phosphorus itself is kept. If it should be desired to make the pill more readily miscible with the contents of the stomach, this may be effected by ordering it to be mixed with a little soap as well as spirit when it is pre- scribed, as follows :— Ijo Pilulae Phosphori gr. xxxvj. Saponis duri ..... gr. xij. Spiritus rectificati . . . . q. s. Misce. Fiant pilulse duodecim. Physiological Effects and Uses.—Phosphorus has been recom- mended as a remedy for gout and rheumatism, epilepsy and para- lysis, but its most decided action is that of an aphrodisiac. It should be administered with caution, in doses of about ^ of a grain. [§ Pepsin. Pepsin. A preparation of the mucous lining of a fresh and healthy stomach of the pig, sheep, or calf. The stomach of one of these animals recently killed having been cut open and laid on a board with the surface upwards, any adhering portions of food, dirt, or other impurity are to be removed and the exposed surface slightly washed with cold water; the cleansed mucous membrane is then to be scraped with a blunt knife or other suitable instrument, and the viscid liquid or pulp thus obtained is to be immediately spread over the surface of glass or glazed earthen- ware and quickly dried at a temperature not exceeding 100°. The dried residue is to be reduced to powder and preserved in a stop- pered bottle.