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

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TINCTURES.

Tinctura Hellebori nigri, P. L. 178ι. Tinctura pleiam- podii, P. L. 1715. Tinctura Hellebori, P. L. 172O.

TINCTURA HUMULI

This and other modifications of the preparations of this bitter have lately been stron y recommended by Μr. Frelae, Obserυations on the Humulus Lupulus, and employed by many practitioners, who belleve that it unites sedative and tonic poWers, which thus form a useful combination.

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250 TINCTU RES.

TINCTURA HYOSCYAMI

That the henbane itself is narcotic is abundantly proved, that the fame power is Dund in iis tincture is also certain, hut in order to produce the fame degree of effect a naucli larger dose than os tincture os optum feems to be required. In some of the statomenis made to the College however adi Terent opinion has been given, and twent sue drops have been considered as equivalent to twenty of tincture os optum; it does not produce costi veness or that subsequent confusionos head whicli osten follows the use of opium, and winthere re be, even is iis Powers be wealaer, os considerable

Tinctura Jalapii, P. L. I 787. P. L. 1745.

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Ad the astringency of hino is included in this preparation.

TINCTURA LYTT E.

inctura Cantharidis, P. L. II 8I. Tinctura Cantharidum, P. L. III 5. P. L. 1720.

drachm S.

Γhe colouring matter of the former preparation is omittedus useless, and that of the flv increased. In order that this preparation may be certain in iis effecis, it is necessary that the insects should be s resti and perfeci; for vliere this hasnot been attended to, I haVe seen very large doses civenmithout any sensibie essect Whatever.

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252 TINCTU REs.

TINCTURA MYRRHAE.

Tinctura Myrrhae, P. L. 178I. Ρ. L. I 745. Tinctura Myrrhae simplex, P. L. II20.

Tinctura Opii, P. L. II 8 T.

A simple tincture os optum Was frst introduced into the Pharmacopoeia os II 87. Selected common opium is no

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TINCTURES. 233

used instead of the purified optum there directed. It is onlywhen opium is in a state os dryness sussicient to be reduci bleto poinder that it cata be uniform in iis strength, for in it Ordinary state it contains an unequat quantity of Water. The strength, and there re the dose, remains nearly as in theformer preparation, but it must alWays be recollected in iis use, that the minim or fixtieth part of tho fui drachm isequat to tWo drops, accordine to the old division by that method.

Tinctura rhabarbari, P. L. 1787. Tinctura inabarbari spirituosa, P. L. II15. Tinctura rhabarbari, P. L. I 720.

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TINCTURA RHEI COMPOSITA.

Tinctura rhabarbari composita, P. L. t 787.

This mixed menstruum extracis more of the purgative A the inubain than the former, and the root mess also in gre ter proportiori; they are both retamen Dor the former Pharmacopoeia.

Tinctura scillae, P. L. t 78I.

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TINCTU S.

TINCTURE OF SENNA.

TINCTURA SERPENTARI E.

Tinctura serpentariae, P. L. I 787. P. L. II45. Tinctura serpentariae virginianae, P. L. 1I20.

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256 TINCTURES.

TINCTURA VALERIANAE.

Τinctura valerianae, P. L. Ι 87. Tinctura valerianae simplex, P. L. 1 45.

Tinctura valerianae ammoniatae, P. L. 1787. Tinctura valerianae volatilis, Ρ. L. 1745.

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TINCTURE OF GINGER.

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ET IIER SULPHURICUS.

SULPHURIC AETHER.

a polinil and hal Pour the spirit into a glass retori, thengradually add lo it ille acid, shal ing it astereacti addition, and taking care that their temperature, during the mixture, may not