Extractum Tritici Fluidum (U. S. P.)—Fluid Extract of Triticum.
Related entry: Triticum (U. S. P.)—Triticum
SYNONYM: Fluid extract of couch-grass.
Preparation.—"Triticum, finely cut, one thousand grammes (1000 Gm.) [2 lbs. av., 3 oz., 120 grs.]; alcohol, water, each, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391 ♏]. Pack the triticum in a cylindrical percolator, pour boiling water upon it, and allow the percolation to proceed, supplying boiling water as required until the triticum is exhausted. Evaporate the percolate to seven hundred and fifty cubic centimeters (750 Cc.) [25 fl℥, 173♏], and, having added to it two hundred and fifty cubic centimeters (250 Cc.) [8 fl℥, 218♏] of alcohol, mix well and set it aside for 48 hours. Then filter the liquid and add to the filtrate enough of a mixture of alcohol and water, made in the proportion of 1 volume of alcohol to 3 volumes of water, to make the fluid extract measure one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]"—(U. S. P.).
The German Pharmacopoeia directs that 1 part of couch-grass be digested for 6 hours in 5 parts of boiling water, filtered, and evaporated to an extractive consistence.
Description, Medical Uses, and Dosage.—(See Triticum). This forms a sweet, brown extract. It is employed in some demulcent infusion for its influence upon the mucous tissues of the lungs, bowels, and genito-urinary organs. It is less valuable than the decoction. Dose, 2 to 6 fluid drachms.