Extractum Haematoxyli

Lond. Extractum HAematoxyli Campechiani, Edin. Extractum Scobis HAematoxyli, Dub. Extract of Logwood.

1 Extractum Ligni Campachensis, P. L. 1745.

This extract is prepared in the same manner as the two former extracts.

Syn. Campecbeholz-extrakt ( G.).

One cwt. of the wood yields 20 lbs. of the extract.1 This extract is almost inodorous, has a sweet austere taste, and a deep ruby colour. It becomes extremely brittle when kept.

It is regarded as useful in the protracted stage of diarrhoea and dysentery. The dose is from grs. x. to 3 ss., dissolved in cinnamon water or peppermint water. It is incompatible with alkalies.

Extractum Radicis Hellebori Nigri. Edin. Extract of Black Hellebore Root

Syn. Extrait d'Ellebore (F.), Schwarz Niesenwurz-extrakt (G.).

This is to be prepared from the bruised root, after the manner directed for the extract of gentian by the Edinburgh College, and the extract of wormwood by the Dublin College. The effects of this extract are those of a drastic purgative, and the emmenagogue power which has been attributed to it seems to depend on its action as a purgative. It has been advantageously given in chronic diseases of the skin.

Extractum Hyoscyami. Lond. Succus spis-satus Hyoscyami nigri, Edin. Succus spissatus Hyos-cyami, Dub. Extract of Henbane

Syn. Extrait de Jusquiame (F.), Hyoszyamus extrakt (G.), Estratto di Giusquiama nera (I.)

Prepared in the same manner as the extract of aconite.

This extract has a disagreeable, slightly foetid odour, and a nauseous, bitterish, subsaline taste. It is possessed of considerable narcotic powers, and is used as a substitute for opium in nervous affections, mania, gout, rheumatism, and all painful complaints, in which it is wished to avoid the cos-tiveness which opium is apt to induce. In combination with colocynth, it augments the purgative and diminishes the griping properties of that drug. A solution of it in water, in the proportion of one drachm to the ounce, dropped into the eye, very much dilates the pupil; and has been used, on the recommendation of Professor Himly, for facilitating the operation for cataract; and also in contracted pupils not accompanied by adhesion of the iris to the capsule.2 The dose is from grs. ij. to Эss., given in the form of pills.

Extractum Lupuli. Lond. Dub. Extract of Hops

It is to be prepared in the same manner as the extract of gentian.

One cwt. of the strobiles yields about 40 lbs. of the extract.2 This extract is inodorous; and has the bitter taste peculiar to the hop. Its virtues depend on lupulin. We have found it an useful but very weak anodyne in gout, acute rheumatism, and cases which do not admit of the use of opium. The dose is from grs. v. to Эj., given in the form of pills, or dissolved in any aqueous vehicle.

Extractum Pareirae. Lond. Extract of Pareira

It is prepared in the same manner as the extract of gentian. This extract possesses the diuretic properties of the plant, and has been found useful in catarrhus vesicae, and other diseases of the urinary organs. It may be administered in combination with narcotics and demulcents, in doses of from grs. x. to 3 ss.