Tinctura Serpentariae (U. S. P.)—Tincture of Serpentaria.
Related entry: Serpentaria (U. S. P.)—Serpentaria
Preparation.—"Serpentaria, in No. 40 powder, one hundred grammes (100 Gm.) [3 ozs. av., 231 grs.]; alcohol, water, each, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Mix alcohol and water in the proportion of six hundred and fifty cubic centimeters (650 Cc.) [21 fl℥, 470♏] of alcohol to three hundred and fifty cubic centimeters (350 Cc.) [11 fl℥, 401♏] of water. Moisten the powder with one hundred cubic centimeters (100 Cc.) [3 fl℥, 183♏] of the menstruum, and macerate for 24 hours; then pack it firmly in a cylindrical percolator, and gradually pour menstruum upon it, until one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏] of tincture are obtained"—(U. S. P.). This tincture has the characteristic taste and odor of Virginia snakeroot, and a brown-yellow color.
Action, Medical Uses, and Dosage.—(See Serpentaria.) Dose, from 1 to 3 fluid drachms.