Pulvis Tragacanthae Compositus.—Compound Powder of Tragacanth.
Preparation.—"Take of tragacanth, gum acacia, starch, each, in powder, 1 ounce (av.); refined sugar, in powder, 3 ounces. Rub them well together"—(Br. Pharm., 1885 and 1898).
Uses.—This preparation forms a good pill excipient, especially for ferrous carbonate, and may be used to form a mucilage in which to suspend the heavier powders.
Related Preparation.—PULVIS ACACIAE COMPOSITUS (N. F.), Compound powder of acacia, Pulvis gummosus (Ger. Pharm.). "Acacia, in fine powder, fifty grammes (50 Gm.) [1 oz. av., 334 grs.]; glycyrrhiza, in fine powder, thirty-four grammes (34 Gm.) 11 oz. av., 87 grs.]; sugar, in fine powder, sixteen grammes (16 Gm.) 1247 grs.]. Mix them intimately"—(Nat. Form).
King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.