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Tinctura Humuli (U. S. P.)—Tincture of Hops.

Botanical name:

Related entry: Humulus (U. S. P.)—Hops

(Modern shorthand: 1:5 41 %)

Preparation.—"Hops, well dried, and in No. 20 powder, two hundred grammes (200 Gm.) [7 ozs. av., 24 grs.]; diluted alcohol, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Moisten the powder with four hundred cubic centimeters (400 Cc.) [13 fl℥, 252♏] of diluted alcohol, and macerate for 24 hours; then pack it firmly in a cylindrical percolator, and gradually pour diluted alcohol upon it, until one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏] of tincture are obtained"—(U. S. P.). This tincture possesses the odor and taste of hops, and has a yellow-brown color. On account of the bulky character of hops, they must be first reduced to powder. In order to do this, they must be air-dried (not artificially), and then rubbed in a mortar with sand, which will effectually accomplish their comminution. Drying somewhat diminishes the activity of hops. A tincture of lupulin is more uniform in character than this preparation.

Action, Medical Uses, and Dosage.—(See Humulus.) Dose, 1 to 3 fluid drachms.


King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.



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