Thomson's Conspectus of the British pharmacopoeias.

  • Anthony Todd Thomson
Date:
1852
Catalogue details

Licence: Public Domain Mark

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

    185/248 page 157
    Comp. A volatile oil, valerianic acid, extractive, resin, starch, mucus. Prop. Odour strong, foetid ; taste bitterish, subacrid, warm ; consists of slender brownish fibres, matted together, and attached to one head ; virtues extracted by water, alcohol, pure alkalies. Over. Antispasmodic, tonic, emmenagogue. Use. Hysteria, epilepsy, hemicrania, chlorosis. Dose. Of the powder 3j. to 3j. three or four times a day, increasing it as far as the stomach can bear it. Incomp. Salts of iron. Off. Prep. Infusum Valeriana, L. D. Tinctura Valeriance, L. E. D. Tinctura Valeriance Ammoniata, E. D. T. Valeriance Composiia, L. VALERIANAS FERRI. D. Valerianate of Iron. (Sodce Valeri- anatis 3v. 3iij.» Ferri Sulphatis 3jv., Aquce distillatce Oj. Let the sulphate of iron be converted into the persulphate, as directed in the formula for Ferri Peroxidum Hydratum, and, by the addition of distilled water, let the solution of the persulphate be augmented to the bulk of Sviij. Dissolve the valerianate of soda in f3x. of the water, then mix the two solutions cold,and having placed the precipi- tate which forms upon a filter, and washed it with the remainder of the water, let it be dried by placing it for some days, rolled up in bibulous paper, on a porous brick. This preparation should be kept in a well-stopped bottle.) Comp. 1 eq. of valerianic acid, and 1 eq. of peroxide (protoxide) of iron. Prop. A reddish-brown dull powder, accreted into small porous masses, nearly tasteless, but with a very strong disagreeable valerianic odour. Insoluble in water, soluble in alcohol; by heat the acid flies off, and the peroxide is left. It is decomposed also by exposure to the air. Oper. Tonic and antispasmodic. Use. In hysteria, chlorosis, chorea, epilepsy. But in consequence of odour and rapid decomposition, it is not much used. Dose. Gr. ss. to gr. ij. thrice a day. Incomp. All acids and astringent vegetable extracts. VALERIANAS QUINCE. D. Valerianate of Quinine. (Quince Mu- riatis 3vij., Sodce Valerianatis gr. cxxjv., Aquce distillatce Oj. Dis- solve the valerianate of soda in f3ij., and the muriate of quina in the remainder of the water, and the temperature of each solution being raised to 120°, but not higher, let them be mixed, and set by for twenty-four hours, when the valerianate of quina will become a mass of silky acicular crystals. Let these be pressed between folds of blotting-paper, and dried without artificial heat. Instead of weighing out3vij.of muriate of quina, and dissolving it in water, as is above prescribed, we may employ the solution of the muriate prepared from an ounce of the sulphate, as directed in the formula for Quinas Murias, such solution having been first evaporated to f^xjv. It may be here observed, that should it become necessary to evaporate a liquid con- taining valerianate of quina, care must be taken that its temperature does not rise higher than 120°.) Comp. 1 eq. of valerianic acid, 1 eq. of soda, and 2 eq. of water of crystallization. Prop. Satiny crystalline masses of snowy whiteness in octahedrons or hexagonal prisms ; taste bitter, but not disagreeable ; odour slight of valerianic acid; soluble in water, in rectified and proof spirit, and in oils. By heat it loses 1 eq. of water, and is converted into a resinous mass, no longer soluble in water. It is precipitated by nitrate of barytes, a valerianate of barytes being formed, which is redissolved ■when gently heated with nitric acid. Oper. Tonic, antispasmodic, antiperiodic. Use. In chorea, hysteria, epilepsy, neuralgia. Dose. Gr. ss. to gr. ij. Incomp. Acids, soluble carbonates, most metallic salts, and astringent vegetable infusions and decoctions. P
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