Companion to the latest edition of the British pharmacopoeia : comparing the strength of the various preparations with those of the United States and other foreign pharmacopoeias to which are added not official preparations and practical hints on prescribing / by Peter Squire.

  • Squire, Peter.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Companion to the latest edition of the British pharmacopoeia : comparing the strength of the various preparations with those of the United States and other foreign pharmacopoeias to which are added not official preparations and practical hints on prescribing / by Peter Squire. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

    47/744 (page 3)
    The product measures only 87, therefore 4 of Gum are contained in 8f measures of Mucilage. Sp. g. 1-160 to 1-170. Dose.—1 to 4 dims. Mucilage keeps well if made cold, then poured into small bottles quite full, and stored in a cool place. Squibb has found that solution of the Gum is facilitated by using it in the form of a coarso powder, not larger than No. 50, nor smaller than No. 80 siove, free from tine powder.—Squibb. German and United States Pharmacopoeias direct that the Gum should be washed with cold Water, before being dissolved. Mucilage, if kept carelessly only a week in hot weather, becomes sour, and its emulsive property is impaired; if made with hot Water the change is more rapid. The substitution of Glycerine for half the Water has been suggested; it makes a clearer solution, and keeps about as well, but the Gum takes much longer to dis- solve. B.P. Mucilage of Acacia keeps better than the weaker preparation of U.S.P., even when Cinnamic Acid has been added to the latter. It is much used in cough linctuses and lozenges, and frequently to render oils, &c., emulsive with aqueous fluids; 3 drms. are required for 1 oz. of oils or resinous tinc- tures, 10 drms. for 1 oz. of Copaiba. The Mucilage should be put into a mortar and the Oil added by degrees, with constant trituration. Used to keep Bismuth and other powders suspended, but Tragacanth answers better. It is sometimes used to make powders into pills, but they become hard after being kept a short time, there- fore Glycerine, Glycerine and Mucilage equal parts, Glycerine of Tragacanth, Glucose, &c, are to be preferred. It is impossible to make a nice emulsion with some of the oils (the Oil of Male Fern for instance) unless the Mucilage be good; if fresh Mucilage is not at hand, half the quantity of tho powder of Acacia can be used; first rub the powder with the Oil, then add Water equal to double the weight of the powder, and rub till an emul- sion is formed; now add by degrees any quantity of aqueous liquid ordered in the prescription. (Dutch and Port., 2 and 3 ; Fr., 1 and 1 ; Austr., Dan., Ger., Hung., Ital., Norw., Russ., Swed., and Swiss, 1 and 2; Span., 1 and 3; Belg., 1 and 4—also M. Spissa, 1 and 2—and M. Levis, 1 and 9 ; U.S. 34 and 66.) Incompatibles.—Alcohol and Sulphuric Acid; Borax, Persalts of Iron, and Subacetate of Lead render it gelatinous. It is not affected by neutral Acetate of Lead Not Official. POTION GOMMEUSE (Fr.).-Powdered Gum Arabic, 1; Simple Syrup, 3; Orange Flower Water, 1 ; Water, 10. All by weigLt. SIKOP DE GOMME (Fr.).-Gum, 10; Sugar, 67; Water, 43; dissolve the Gum in cold Water, then the Sugar by the aid of a water-bath ; and strain. SYEUPUS ACACL2E (U.S.).—Mucilage of Acacia, 1; Syrup, 3. Mix when re- quired, as it does not keep well. UNNA'S GUM PASTES.-A mixture of equal parts of Mucilage of Acacia and Glycerine, with which are incorporated various medicaments such as Oxide of Zinc and Oxide of Mercury. D 2