A companion to the United States pharmacopia; . nge-brown considerably when soaked in water. 518 A COMPANION TO THE Must be sound and nearly dry. Constituents.—Contains gentiopicrin, a bitter glucoside whichcrystallizes in colorless, neutral needles, and is soluble in water and in alcohol. The coloring mat-ter in gentian is gentianicacid (gentisic acid). Solublein alcohol. Contains notannin. American gentian, fromG. puberula, G. saponaria,and G. Andrewsii, is muchsmaller than the Europeangentian, and consists of ascarcely annulated head, onlyabout twelve millimeters (-Jinch) long
A companion to the United States pharmacopia; . nge-brown considerably when soaked in water. 518 A COMPANION TO THE Must be sound and nearly dry. Constituents.—Contains gentiopicrin, a bitter glucoside whichcrystallizes in colorless, neutral needles, and is soluble in water and in alcohol. The coloring mat-ter in gentian is gentianicacid (gentisic acid). Solublein alcohol. Contains notannin. American gentian, fromG. puberula, G. saponaria,and G. Andrewsii, is muchsmaller than the Europeangentian, and consists of ascarcely annulated head, onlyabout twelve millimeters (-Jinch) long and three milli-meters (^ inch) thick, witha great number of light-colored rootlets about sixcentimeters (2f inches) long. Medicinal Uses.— Gentian is a simple, bittertonic, very much employedas a stomachic and is a valuable remedy incertain forms of dyspepsiaand want of appetite duringconvalescence. The dose is from to2 grams (8 to 30 grains) inpowder, but it is seldomFig. 279.—Gentian, natural size. given in this GENTIANS EXTRACTUM ; U. S. Extract of Gentian. Moisten five hundred grams (17J avoirdupois ounces) of gentian, inNo. 20 powder, with two hundred grams (Gf fluidounces) of water andmacerate twenty-four hours. Then pack it in a conical percolator andpercolate with water until the percolate passes through but slightlybitter. Boil the liquid down to three-fourths of its weight, and strain UNITED STATES PHARMACOPCEIA. 519 it; then evaporate by water-bath heat to a pilular consistence. Noglycerin is added to this extract. Brown. Yield about twenty-five per cent. Dose.— to 1 gram (3 to 15 grains). GENTIANS EXTEACTUM FLUIDUM; XL Extract of Gentian. To make five hundred cubic centimeters (or its equivalent—17 U. ), use five hundred grams (or its equivalent—17§ avoirdupoisounces) of the drug, in No. 30 powder. As a menstruum use diluted alcohol. Moisten the drug with one hundred and seventy-five grams (about6J fluid
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1884
