Extract of Cuspa′′ria. Extract of angostura bark; Extractum cuspariæ, E. corticis c., E. angosturæ, L. Prep. 1. From angostura bark, as EXTRACT OF CINCHONA—Ph. L.
2. (Alcoholic.) As EXTRACT OF CINCHONA—Ph. E. Stronger than the last. Both are aromatic, bitter, tonic, and stimulant.—Dose, 10 gr. to 1⁄2 dr.; in dyspepsia, chronic diarrhœa, dysentery, &c.
Extract of Daff′odil. Syn. Extractum narcissi, L. Prep. 1. From the fresh flowers of daffodil or yellow narcissus (Narcissus pseudo-narcissus), as EXTRACT OF ANCONITE—Ph. L.
2. (Alcoholic.) From the dried flowers, as EXTRACT OF BOX. Both are pectoral and expectorant; and in large doses nauseant and emetic.—Dose, 1⁄2 gr. to 2 gr.; in hooping-cough, &c.
Extract of Dandeli′on. See Extract of Taraxacum.
Extract of Digita′lis. See Extract of Foxglove.
Extract of Dog’s Grass. See Extract of Couch Grass.
Extract of Dog′wood. Syn. Extractum cornûs, E. corni, L. Prep. From American or tree dogwood (Cornus Florida), as EXTRACT OF CINCHONA BARK.
Obs. In its general effects, American dogwood approaches the cinchonas, and is said to be not inferior to them in the cure of intermittents. (Bigelow.) It contains a peculiar bitter principle, called cornine. Several other varieties of the genus Cornus, as round-leaved dogwood (Cornus circinata), swamp dogwood (Cornus sericea), &c., are used in America, but are less valuable.
Extracts, Dried or Powdered. Syn. Extracta sicca vel pulverata (Ph. Prus.). These are made by mixing 4 parts of the extract with 1 part of powder of sugar of milk, and setting the mixture in a warm place till dry.