Extract of Nose′gay. Syn. Essence of nosegay; Extrait de bouquet, Fr. Prep. Flowers of benzoin, 1 dr.; essence of ambergris, 2 fl. oz.; spirits of jasmine and extract (esprit) of violets, of each 1 pint; spirits of cassia, roses, orange flowers and gillyflowers, of each 1⁄2 pint; mix. A delightful perfume.
Extract of Nux Vom′ica. Syn. Extract of koochla nuts; Extractum nucis vomicæ, B. P. Prep. 1. (Aqueous; E. n. v. Aquosum, L.—Ph. Bor.) From the powdered nut, as EXTRACT OF HOPS—Ph. L. (nearly.)—Dose, 1 to 5 gr.
2. (Alcoholic; Extractum nucis vomicæ—Ph. L. E. and D., E. n. v. alcoholicum, L.)—a. (B. P.) Soften nux vomica by steam, dry rapidly, and reduce to fine powder; boil with rectified spirit until exhausted, strain, distil off the spirit, and evaporate to the consistence of a soft extract.—Dose, 1⁄2 to 2 gr.
b. (Ph. L.) Koochla or poison nuts (seed or fruit of Strychnos Nux-vomica), 8 oz.; rectified spirit, 3 pints; expose them to steam until softened, then bruise, slice, and dry them, and macerate them in 2-3rds of the spirit for 7 days; express the tincture, and repeat the maceration with the remaining 1-3rd of the spirit; again express the liquid; lastly, filter the mixed tinctures, distil off the greater part of the spirit, and complete the evaporation by a gentle heat. The formula of the P. Cod. is similar, but using spirit sp. gr. ·863 (=41 o. p.).
c. (Ph. E.) The sliced and dried nuts are to be ground in a coffee-mill, and either exhausted
by percolation with rectified spirit or by boiling the powder in repeated portions of the menstruum. The formulæ of the Ph. Baden and U. S. are similar.
d. (Ph. D. 1826.) From a tincture of the rasped nut made with proof spirit, observing that the extract, whilst thickening, should be properly stirred.
Obs. This extract consists chiefly of impure igasurate of strychnia, and is exhibited in similar cases to that alkaloid. Used as a stimulant of the nervous system in paralysis.—Dose, 1⁄2 gr., gradually and cautiously increased to 2 gr. It is very poisonous. On the large scale, the nuts are ground in a drug-mill.
Extract of Oak Bark. Syn. Extractum quercûs, E. corticis quercûs, L. Prep. (Ph. D. 1826.) From the decoction. Astringent.—Dose, 10 gr. to 1⁄2 dr. Now seldom used.
Extract of O′pium. Prep. 1. (Aqueous extract of opium, Simple e. of o.; Extractum opii (B. P.), E. o. aquosum (Ph. D.), E. o. purificatum, L.)—a. (B. P.) Opium in thin slices, 1 lb.; distilled water, 6 pints. Macerate the opium in 2 pints of the water for 24 hours, and express the liquor. Reduce the residue of the opium to a uniform pulp, macerate again in 2 pints of the water for 24 hours, and express. Repeat the operation a third time. Mix the liquors, strain through flannel, and evaporate by a water bath to a proper consistence for forming pills.—Dose, 1⁄2 to 1 gr., or more.