Tinctura Calumbae (U. S. P.)—Tincture of Calumba.
Related entry: Calumba (U. S. P.)—Calumba
(Modern shorthand: 1:10 60 %)
SYNONYMS: Tinctura colombae, Tincture of colombo.
Preparation.—"Calumba, in No. 20 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 cubic centimeters (600 Cc.) [20 fl℥, 138♏] of alcohol to four hundred cubic centimeters (400 Cc.) [13 fl℥, 252♏] of water. Having moistened the powder with one hundred cubic centimeters (100 Cc.) [3 fl℥, 183♏] of the menstruum, macerate for 24 hours; then pack it 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.). If diluted alcohol be employed, a tincture is obtained which deposits a greater amount of precipitate than when strong alcohol is used. This tincture has a brownish-yellow color.
Action, Medical Uses, and Dosage.—This tincture forms a bitter tonic; it may be added to liquid tonic preparations, whenever it is required, to slightly augment their tonic action. The dose is from 1 to 4 fluid drachms.