Extract of Worm Grass. See Extract of Pinkroot.
Extract of Worm′seed. Syn. Extractum cinæ æthereum, E. seminum c. æ., L. Prep. (Hamb. Cod. 1845.) Wormseed, 1 oz.; ether, 4 oz.; digest 3 or 4 days, press, filter, distil off 4-5ths, and evaporate the residuum to a proper consistence. Prod. 25% to 30%. Vermifuge.—Dose, 3 to 10 gr., night and morning, for 2 or 3 successive days, followed by a brisk purge.
Extract of Worm-wood. Syn. Extractum absinthii; Extractum artemesiæ absinthii, L. Prep. 1. (Ph. D., 1826.) From the dried flowering tops of wormwood, as the other simple extracts (EXTRACTA SIMPLICIORA—Ph. D.)
2. (Ph. Bor.) As EXTRACT OF RHATANY—Ph. Bor.
3. (P. Cod. and Ph. Baden.) By displacement by cold water.
Obs. Bitter, stomachic, tonic, and vermifuge.—Dose, 10 gr. to 20 gr., 2 or 3 times daily; in dyspepsia, loss of appetite, gout, &c. It is usual to add a few drops of the oil of wormwood to the extract before taking it from the pan.
4. (Alcoholic; Extractum absinthii alcoholicum, L.— Guibourt.) From a tincture prepared from the dried tops of wormwood boiled in proof spirit. More active than the last.
Extract of Yew. Syn. Extractum taxi, L. Prep. 1. (Loder.) From the inspissated juice of the fresh leaves of the yew (Taxus baccata). Its action on the circulation greatly resembles that of digitalis, but is more manageable.—Dose, 1 to 7 gr.; in epilepsy, &c.
2. (Alcoholic,—Ph. Baden.) From the dried leaves, as ALCOHOLIC EXTRACT OF ACONITE—Ph. Baden.
Obs. In addition to the preparations given above, there are many others which are often called ‘EXTRACTS,’ These may be grouped under the following heads:—