The pharmacopoeia of the Royal College of Physicians of London, MDCCCIX

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ΡULVIS CRETAE COMBOSITUS CUM

Pulvis cretae compositus cum opto, P. L. 1787. Pulvis ebolo compositus cum opto. Species e scordio Cum Opio, P. L. 1I45.

The utility of this may be deduced stoin the frequentemployment in practice of the former compound of the fame name. Independent of the action of the challa and astringenis, the Opium is much divided, and can thus begiven in smaller doses than ordinary balances in the shopsare calculated to weigh by itself; the proportion os optumis someWhat increased Dom that contained in the preparation of the sermer Pharmacopoeia; that was i in Φ3, ibis isi in qO.

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Pulvis ipecacuantiae compositus, P. L. II87.

This usesul compound was formerly named Do era m der, and was first introduced into the Pharmacopoeia os la87.

PULVIS KINO COMPOSITUS.

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This astringent powder is now first introduced; the proeportion of Opium it contains is 1 in 20.

PULVIS SCAMMONEAE COMΡOSITUS.

Pulvis scammonii compositus, P. L. II87. Pulvis e scammonio compositus, Ρ. L. I 45. Pulvis comitis Warwicensis, P. L. 172O.

This powder stands as in the former Pharmacopo ia, and differs materialty Dom the Pulvis e Scammonio compositus os P. L. 1745, whicti Was then intended to supply the place of the earl of Wamich's powdor, and consisted os a miXture of Φ paris scammouy and 3 paris of burni hartshorn.

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PULVIS SEΝΝ E COMPOSITUS.

Pulvis sennae compositus, P. L. II87. Pulvis e sena compositus, P. L. 1745. Pulvis diasenae, P. L. 1720.

Scammony Gum Resin, linis an

PULVIS TRAGACANTHI COMPOSITUS.

Pulvis Tragacanthae compositus, P. L. 178I. Pulvis e tragacantha compositus, P. L. II45. Species Diatragacanthae frigidae, P. L. II20.

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Ρo viter the starch and sugar together: then add tho tragacanth and acacia guin, and mix the whole.

Tragacanth is very dissicultly reduci ble to poWder Without addition. Ten gratias of this compound renders a bulla oftwo fluidounces of liquid as thich as cata be conveniently

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PILULAE.

THE consistence of pilis is best preserved by heeping thema8s in bladdors and occasionalty moistening it. In the direction os masses to be thus divided the proper consistence isnot only to be looked to at sirst, but also iis preservation aiater vards, sor is the mass on keoping become hard and dry it istinfit for that division sor whicli it was originalty intended; and this is in many instances such an objection to the form, that it is doubilat whether for the purpo ses of the Pharmacopoeia the greater number of articles had not better belaept in powder, and their application to the formation Ospilis test to extemporaneous direction.

PILULAE ALOES COMPOSITAE.

Pitulae Aloes compositae, P. L. 1787.

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PILULAE ALOES CUM MYRRHA.

Pitulae alosis cum myrrha, P. L. I 87. Pitulae Rufi, P. L. I 745. Pitulae Rusii seu communes, P. L. 1720.

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PILULAE CAMBO GLE COMPOSITAE.

These pilis are now srst introduced as serming a more active common purgative pili than that whicli precedes them, and in this way supplying an article very frequently necessaryin practice.

PILULAE FERRI CUM MYRRHA.

PILI S OF IRON AND MYRRH. Tahe of Myrrh poWdered, two drachinS Subcarbonate of Soda, Sulphate of Iron, Sugar, of each a drachm. Rub the myrrh With the sub carbonate Oi

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soda; add the sulphate of iron and rub themugain : then beat the whole together uritilthey are thoroughly in Corpora ted.

It has been considered proper to give directions for the preparation os illis common medicine in a solid form, as melias in that os mixture, and the moist sugar With whicti it is made Will preserve it os a proper consiStence.

PILULAE GALBANI COMPOSITAE.

form m RSS. The present differs Dom the former formula in theomission of the Opoponax, and iis quantity is made up sorby increasing the proportions of the Myrrh and Sagapenum. Everu succeeding Pharmacopoeia has diminished the numberos ingredients of this pili, and that of 17q5 frst consolidaled the Pitulae foetidae and Pilulae gummosae into ono. X u

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30S PILI S.

MERCURIAL PILI S.

Pilutae Hudrargri, P. L. 1787. Pitulae mercuriales, P. L. II 15.

Confection os Red Rosos, three drachm S. Liquorice Ruot poWdered, udrachm. Rub the mercury With the consection, untii the globules disappear: then adit the liquoriceroot, and beat the whole togetlier untii theyare thoroughly incorpora ted.

The mercurial pili, osten Dom iis colour called the blaepit isone of those establisliud forms whicli it has not been thought prooer to alter in any Way. The complete extinctiora of the mercury is certainly matter of dissiculty, but it must be sullyaccomptished besore the addition of the liquorice powder, and can be best judged os by rubbing a smali portion thmlyon paper With the finger, and examining by a magni'ing glassii any olobules of the metat are stili visibie. Some have thoughtthat the process might have been shortened by ad ling sonae

Unctucius SubStance, as manna, or that even the turpentines Would not here bellabie to the sanae objectionsas Chen othersare added to Oiniment.