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Tinctura Gallae (U. S. P.)—Tincture of Nutgall.

Related entry: Galla.—Nutgall

SYNONYM: Tincture of galls.

Preparation.—"Nutgall, in No. 40 powder, two hundred grammes (200 Gm.) [7 ozs. av., 24 grs.]; glycerin, one hundred cubic centimeters (100 Cc.) [3 fl℥, 183♏]; alcohol, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Mix the glycerin with nine hundred cubic centimeters (900 Cc.) 130 fl℥, 208♏] of alcohol. Pack the powder, without moistening it, in a conical glass percolator; then gradually pour upon it the menstruum, and, afterward, alcohol, until one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏] of tincture are obtained"—(U. S. P.). This is a powerfully astringent, yellow-brown tincture, acid to test paper. With ferric compounds it strikes a blue-black color. The formation of gallic acid is retarded by the glycerin.

Action, Medical Uses, and Dosage.—(See Galla.) Dose, 1/2 to 2 fluid drachms. Employed chiefly externally as an astringent.


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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