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The London Dispensatory, containing : 1. the Elements of Pharmacy ; 2. the botanical Description, natural History, chemical Analysis, and medicinal Properties of the Substances of the Materia Medica ; 3. the pharmaceutical Preparations and Compositions of the Pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians ; the Whole forming a Practical Synopsis of Materia Medica, Pharmacy, and Therepeutics
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PART in.

Tinctures.

G59

" Take of opium, two ounces; proof spirit, two pounds. Ma-cerate for seven days, and filter through paper."

Tinctura Opii, sive Tinctura Thebaica. Dub. Tinctureof Opium, or Thebaic Tincture.

" Take of purified hard opium in coarse powder, tendrachms ; proof spirit, a pint. Digest for seven days, then strain."

Owing to crude opium being now ordered by the LondonCollege instead of hard purified opium, the strength of thetincture formerly prepared is to that of the present tincture, as3 to 2; or »l xiv. of the old tincture contained one grain ofopium, and were equal to fll xix. of the present tincture. The" Edinburgh tincture is of the same strength as the present Lon-don tincture ; but the Dublin is stronger, v\ xiv. of it contain-ing one grain of opium. This tincture is used in all cases inwhich opium is indicated, and is a very convenient and elegantform of giving the remedy." The usual dose is from Ti\x. tot?l Ix.; but in some morbid states of the habit veiy large dosescan be borne, and are even necessary. In colica pictonumfjjj. given before using purges, facilitates their action, and ren-ders the relief more speedy ; and in tetanus f^vfs. have beengiven in divided doses, with advantage in twenty-six "hours.As an external application, the tincture rubbed upon the skinproduces its anodyne effects in a smaller degree, allays localpains, and assists in relaxing the spasm in lock-jaw and similaraffections. Its powers as an external remedy are veiy muchincreased by combining it with vinegar; an acetate of mor-phia being thus produced.

TINCTURA OPII AMMONIATA ; olim, Ei-xir Parf.-goricum. Edin. Ammoniated Tincture of Opium; formerlyParegoric Elixir.

" Take of opium, two drachms; benzoic acid, saffron, cut inshreds, of each, three drachms; volatile oil of aniseed, half adrachm; ammoniated alcohol, sixteen ounces. Digest for sevendays, and filter through paper."

This tincture is useful in hooping-cough and spasmodicasthma. Each f 53. contains gr. j. of opium.

TINCTURA QUASSLE EXCELSiE. Edin. Tinctureof Quassia. 5

" Take of quassia wood rasped, one ounce; proof spirit, t'jsopounds and a half. Digest for seven days, and filter throughpaper."

Tinctura Quassia. Dub. Tincture of Quassia.

1 It ought to be kep; in opaque bottles; as li^ht, according to the experiments of Vo-gtl, l.as the power of decomposing it. Vije Jouni, Ptom. Mai,. 1815. p. ] » 3 .1 C-urrie's Report on Cold Hater, i. 138.3 Teinture tie Quassia (f.)

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