Extractum Veratri Viridis Fluidum (U. S. P.)—Fluid Extract of Veratrum Viride.
Related entry: Veratrum Viride (U. S. P.)—Veratrum Viride
SYNONYMS: Fluid extract of American hellebore, Fluid extract of American veratrum. Preparation.—"Veratrum viride, in No. 60 powder, one thousand grammes (1000 Gm.) [2 lbs. av., 3 ozs., 120 grs.]; alcohol, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Moisten the powder with three hundred cubic centimeters (300 Cc.) [10 fl℥, 69♏] of alcohol, pack it firmly in a cylindrical percolator; then add enough alcohol to saturate the powder and leave a stratum above it. When the liquid begins to drop from the percolator, close the lower orifice, and, having closely covered the percolator, macerate for 48 hours. Then allow the percolation to proceed, gradually adding alcohol, until the Veratrum viride is exhausted. Reserve the first nine hundred cubic centimeters (900 Cc.) [30 fl℥, 208♏] of the percolate, and evaporate the remainder, at a temperature not exceeding 50° C. (122° F.), to a soft extract; dissolve this in the reserved portion, and add enough alcohol to make the fluid extract measure one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]"—(U. S. P.).
Description, Medical Uses, and Dosage.—(See Veratrum Viride). This preparation holds the alkaloids and resins of veratrum in solution, and is about 2 ½ times stronger than tincture of veratrum. Dose, 1/10 to 2 minims.