part m. Metallic Preparations. — Antimony. 641

It was formerly much employed in asthma, and in catarrhalaffections; but it is uncertain in its operation, and is not muchemployed in modern practice; unless when combined withmercurials, when it forms a useful alterative in herpetic andother eruptions. During its use, the patient must avoid theuse of acids and acidulous salts, as these increase very power-fully the emetic properties of the preparation. The dose isfrom gr. j. to grs. iv. in a pill, twice a day.

Officinal preparation. Pilulce Hydrargyri submuriatis comp,, L.ANTIMONIUM TARTARIZATUM, Lond. Tartar-izcd Antimony.

" Take of powdered sulphuret of antimony, two ounces ; ni-trate of potass, one ounce „• supertartrate of potass, two outices ;sulphuric acid (by weight), two ounces; distilled water, one pintand a half. Mix the acid with the water in a glass vessel, andheat the mixture in a sand-bath. When it is moderately warm,add by degrees the sulphuret and the nitrate previously mixedtogether, then strain, and boil until all the moisture is con-sumed. Wash the residue with distilled water, until it re-mains tasteless, and while it is yet moist, mix with it the super-tartrate of potass, and throw the whole into a pint of distilledwater; finally boil the solution and set it aside to crystallize."Tartas Antimonii ; olim, Tartarus Emeticus, Edin.Tartrate of Antimony, formerly Tartar Emetic.

" Take of sulphuret of antimony, and nitrate of potass, ofeach, an equal weight ,■ supertartrate of potass, a siifficient quan-tity. Triturate separately the sulphuret and the nitre, andhaving mixed them well together, throw them into a red-hotcrucible. When the deflagration is finished, separate the redmatter from the white crust, and rub it into a very fine powder,which must be washed with several effusions of warm water ;and afterwards dried.

" This powder is now to be rubbed together with an equalweight of supertartrate of potass, and the mixture boiled in aglass vessel, with four times its weight of distilled water, foran hour; then strained through paper, and the strained so-lution set aside to deposit crystals by evaporation."

Tartarum antimoniatum, sive emeticum, Dub. Anti-moniated or Emetic Tartar.

" Take ofnitro-muriatic oxide of antimony, two ounces ; crys-tals of tartar, rubbed to a very fine powder, two ounces and ahalf; distilled water, eighteen fluid ounces. Boil the water ina glass vessel; then gradually throw into it the oxide and thetartar previously mixed together, and boil the mixture for halfan hour; then filter the solution through paper, and allow itto crystallize by slow cooling."

Syn. Tartrate de potasse antimofli6 (F. ), Spiessglanz-weinstein (G.), TartaroAntimoniato (/.).

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