Trochisci Acidi Tannici (U. S. P.)—Troches of Tannic Acid.
Preparation.—"Tannic acid, six grammes (6 Gm.) [93 grs.]; sugar, in fine powder, sixty-five grammes (65 Gm.) [2 ozs. av., 128 grs.]; tragacanth, in fine powder, two grammes (2 Gm.) [31 grs.]; stronger orange-flower water, a sufficient quantity to make 100 troches. Rub the powders together until they are thoroughly mixed; then, with stronger orange-flower water, form a mass, to be divided into 100 troches"—(U. S. P.). Nearly 1 grain of the acid is contained in each troche.
Action and Medical Uses.—(See Acidum Tannicum.)
King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.