_Obs._ The medical action of extract of poppies, for the most part,
resembles that of opium; but it is considerably weaker, and is generally
regarded as less prone to produce headache and delirium.--_Dose_, 2 to 12
gr. It is usually prepared by the large manufacturers, by exhausting the
capsules, by coction with water; hence the inferior quality of the extract
of the shops, which contains a considerable quantity of inert matter.
The principal consumption of this extract is among the brewers, brewers'
druggists, and wine merchants. For this purpose it is evaporated until it
becomes hard on cooling, when it is formed into half-pound rolls, and
covered with paper, like lead plaster. One of these rolls added to a
hogshead of ale, stout, or sherry, materially increases the 'headiness' or
apparent strength of these beverages.
=Extract of Pota'to.= _Syn._ EXTRACTUM SOLANI TUBEROSI, L. _Prep._ (Dr J.
Latham.) From the stem and leaves of the potato plant, as EXTRACT OF
ACONITE--Ph. L. Narcotic.--_Dose_, 2 to 10 gr.
=Extract of Pur'ging Flax.= _Syn._ EXTRACTUM LINI CATHARTICI, L. _Prep._
(Dr B. Lane.) From the dried herb, as EXTRACT OF HOPS--Ph. L. Aperient and
diuretic--_Dose_, 5 to 10 gr.; 14 lbs. yielded 2-1/4 lbs. of extract.
=Extract of Quas'sia.= _Syn._ EXTRACTUM QUASSIÆ (B. P.), EX. Q. LIGNI, L.
_Prep._ 1. (B. P.) Quassia scraped, 1 lb.; distilled water, a sufficiency;
macerate the quassia in 8 oz. of water for 12 hours; pack in a percolator;
add water till the quassia is exhausted; evaporate, filter before it
becomes thick, and again evaporate in a water bath to a proper consistence
for pills.--_Dose_, 2 to 5 gr.