Notes on the pharmacopoeial preparations (B. P., 1867) : specially arranged for the use of students preparing for examination / by W. Handsel Griffiths.

  • Griffiths, W. Handsel (William Handsel), 1846-1877
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Notes on the pharmacopoeial preparations (B. P., 1867) : specially arranged for the use of students preparing for examination / by W. Handsel Griffiths. Source: Wellcome Collection.

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    The following are the formulae :— Active Ingredient. Basis. Other Ingredients. E. Tahaci Tobacco Leaf ... 20 grs. 8 ounces E. Assafcetidcn )E. Aloes E. Opii Assafoetida ... 30 grs. Aloes 40 grs. Tincture of Opium i drm. 4 ounces 10 ounces 2 ounces r Carbonate < of Potash. (15 grains. E. Magnesics Sulphatis Sulph. of Magnesia 1 oz. 15 ounces Olive Oil 1 oz. E. TereUn- thince Oil of Turpentine 1 oz. 15 ounces ESSENTIA (ESSENCES). ' Of these there are only two in the Pharmacopoeia, viz.:— Essentia Anisi. „ Menthae Piperitse. They are solutions of 1 part of the volatile oil in 4 parts of rectified spirit. EXTRACTA (EXTRACTS). These are preparations obtained by evaporating solutions of vegetable principles. They may be conveniently divided into classes according to their method of preparation. CLASS I. FRESH OR GREEN EXTRACTS. Preparation.—l^hQ ]mce pressed out from 112 pounds of the bruised plant is heated to 130° F. to coagulate the green colouring 7natter; this is then filtered ofi, and the fluid is heated to 200^^ F. to coagulate the albujnen, which is sepa- rated by filtration. The fluid is now evaporated, at not above 140'', to a thin syrupy consistence; the green colour- mg matter, which was separated in an early stage of the