Tinctura Rhei Dulcis (U. S. P.)—Sweet Tincture of Rhubarb.
Related entry: Rheum (U. S. P.)—Rhubarb
Preparation.—"Rhubarb, one hundred grammes (100 Gm.) [3 ozs. av., 231 grs.]; glycyrrhiza, forty grammes (40 Gm.) [1 oz. av., 180 grs.]; anise, forty grammes (40 Gm.) [1 oz. av., 180 grs.]; cardamom, ten grammes (10 Gm.) [154 grs.]; glycerin, one hundred cubic centimeters (100 Cc.) [3 fl℥, 183♏]; alcohol, water , diluted alcohol, each, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Mix the rhubarb, glycyrrhiza, anise, and cardamom, and reduce the mixture to a moderately coarse (No. 40) powder. Mix the glycerin with five hundred cubic centimeters (500 Cc.) [16 fl℥, 435♏] of alcohol and four hundred cubic centimeters (400 Cc.) [13 fl℥, 252♏] 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 firmly in a cylindrical percolator, and gradually pour on the remainder of the menstruum. When the liquid has disappeared from the surface, gradually pour diluted alcohol upon it, until one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏] of tincture are obtained"—(U. S. P). This preparation contains one-third less rhubarb than tincture of rhubarb, and is of a pleasanter taste than the latter.
Action, Medical Uses, and Dosage.—(See Rheum.) Dose, 1 to 3 fluid drachms.