A companion to the United States pharmacopia; . f thedrug. The exit of the percolator isnow closed and the top covered toprevent evaporation. The whole isallowed to stand forty-eight the percolation is started,adding alcohol as required to keepthe drug always covered. Whenone hundred and seventy (170) partsby weight of the percolate has beenobtained, set that portion another receiver under thepercolator and continue the processuntil the drug is exhausted. Evapo-rate this second percolate downuntil it weighs thirty (30) this with the reserved mixed l
A companion to the United States pharmacopia; . f thedrug. The exit of the percolator isnow closed and the top covered toprevent evaporation. The whole isallowed to stand forty-eight the percolation is started,adding alcohol as required to keepthe drug always covered. Whenone hundred and seventy (170) partsby weight of the percolate has beenobtained, set that portion another receiver under thepercolator and continue the processuntil the drug is exhausted. Evapo-rate this second percolate downuntil it weighs thirty (30) this with the reserved mixed liquids (weighing to-gether two hundred (200) parts) areput in a tared evaporating dish withfifty (50) parts of powdered milksugar, and set in a place where thetemperature is between 40° and 50°C, or from 104° to 122° F., untilthe mixture is dry. Then enoughpowdered sugar of milk is added tomake the total weight of the contents of the dish one hundred (100)parts. The whole is now triturated until a uniform and very fine pow-der is Fig. 106.—Belladonna Root, natural size(from an old plant). UNITED STATES PHARMACOPOEIA. 223 The same product may be obtained by evaporating one thousandcubic centimeters of the fluid extract of belladonna root with the requi-site quantity of milk sugar, making five hundred grams finished product. [Two avoirdupois pounds of powdered belladonna root will yield onepound of abstract. This will require one-half pint alcohol for moisten-ing, and about half a pint more for saturating the drug preparatory tothe forty-eight hours maceration. The reserved portion will measureabout two pints, and the second percolate, after evaporation to theprescribed point, will measure nearly six fluidounces.] Is more uniformthan the extract and more easily dispensed. Dose.— to gram (^ to 2 grains). BELLADONNA EMPLASTRUM; U. Plaster. Evaporate five hundred cubic centimeters (17 fluidounces) of fluidextract of belladonna root to the cons
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1884
