Tinctura Arnicae Radicis (U. S. P.)—Tincture of Arnica Root.
Related entry: Arnica.—Arnica - Tincture of Arnica Flowers.
(Modern shorthand: 1:10 65 %)
Preparation.—"Arnica root, 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.) 111 fl℥, 401♏︎] of water. Moisten the powder with one hundred and fifty cubic centimeters (150 Cc.) [5 fl℥, 35♏︎] of the menstruum, and macerate for 24 hours; then pack it moderately 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.).
Action, Medical Uses, and Dosage.—(See Arnica.) Dose, 1 to 30 minims.
