Thomson's Conspectus of the British pharmacopoeias.

Anthony Todd Thomson

Date:: 1852

Credit: Thomson's Conspectus of the British pharmacopoeias. Source: Wellcome Collection.

144/248 page 116

$Comp. Bitter extractive, resin, tannin. Prop. Bitter, slightly aromatic. Oper. Astringent, tonic, diuretic. Use. In affections of the kidney, and in dropsy. Dose. Of a decoction, made with 3j. of the dried herb and two pints of cold water, boiled down to one pint and strained, from fjj. to f^iij. three times a day. OJfl Prep. Becoctum Chimaphilce, L. Becoctum Pyrola, D. QUASSIA. L. E. D. Quassia Wood. (Picrana excelsa. Becand. Monogyn. N. O. Simarubacea. Jamaica. If..) The wood. Prop. Inodorous; taste a very intense, durable bitter; colour whitish- yellow ; has no astringency; bitter principle (Quassite or Quassin) extracted by water and alcohol. Oper. Tonic, stomachic, and, according to some, narcotic. Use. In atonic dyspepsia; intermittents; bilious fever, combined with neutral salts; lienteria and cachexia: in hysteria, united with tincture of valerian ; and with cretaceous powder and ginger in gout. Bose. Of the raspings gr. v. to 3ss., but infusion and extract are pre- ferable forms of exhibiting it. Incomp. Nitrate of silver, acetate of lead. Off. Prep. Infusum Quassia, L. E. D. Extractum Quassia, E. Tinct. Quassia, E. Tinctura Quassia Composita, E. QUERCUS. L. E. Cortex, L. Oak* Bark. (Quercus Pedunculata. Q. robor. Moncecia Polyand. N. O. Cupulifera. {Corylacea, Lind- ley.) Europe. 1?. Comp. Tannin, or tannic acid, with, perhaps, a small quantity of gallic acid. Prop. Inodorous; taste austere, styptic; differs from galls in not pre- cipitating solutions of tartar emetic. Oper. Tonic, astringent. Use. In intermittents, combined with galls, bitters, and aromatics; useful also in leucorrhcea, and alvine fluxes. See Becoction. Bose. Of the powder gr. x. to 3ss. twice or thrice a day. Off. Prep. Becoctum Quercus, L. E. Q. QUERCUS 1NFECTORIA. D. Nut-gall Oak. See Gallce. QUIN^i D1SULPHAS. L. Quinas Sulphas, E. D. Disulphate of Quina. (Cinchona flava pulverisafa tbj., Aqua cong. jss., Acidi Sul- phurici venalis f§ss., Spiritus rectificati Oiij., Calcis fj., Carbonis ani- malis 3ss., Acidi Sulphurici diluti f Jss., vel q. s. s. Macerate the bark for twenty-four hours with cong. ss. of water, acidulated with f3ij. of the oil of vitriol; then boil for half an hour, and decant. Boil the residue with a second half-gallon of the water, acidulated with one drachm of the oil of vitriol, and again decant; and let this process be a third time performed with the rest of the water, and the residual drachm of the oil of vitriol. Let the decanted liquors be evaporated to the bulk of one quart, and filtered through calico when cold, and to the solution thus obtained add the lime, until the mixture becomes decidedly alkaline. The precipitate collected on a calico filter, is to be washed with about a pint of cold water, and when partially dried on porous bricks, to be enveloped in blotting-paper, and subjected to powerful pressure. The pressed mass must now be introduced into a flask, containing a pint of the spirit, which is to be raised to and main- tained at the temperature of ebullition for twenty minutes, and then, after the subsidence of the insoluble matter, decanted. This process having been repeated successively with the second and third pints of spirit, and the undissolved residuum having been subjected to ex- pression, let the decanted and expressed liquors be cleared by passing them through a paper filter, and then subjected to distillation, so as to recover the entire of the spirit. The brown, viscid mass which remains is now to be mixed with fSxvj. of water, and this being raised to the boiling point, the dilute sulphuric acid must be added, so as to produce a neutral or very slightly acid solution. Add now the animal$

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