70

CATH

Cataplasma Sinapis. L. D. P. Sinapism, or Mustard Poultice.Take Ibss each of mustard flour and linseed meal, with enough ofhot vinegar to form a mass. It is rubefacient and stimulant, andused as the last; also applied to the soles of the feet in typhoiddelirium, as also in metastatic gout, &c. In order to render itstronger there may be added 5j each of cayenne pepper and of gingerin powder, and giij of oil of turpentine.

Catchup. See Ketchup.

Catechu Estractum. L. E. D. Catechu, or Japan Earth (TerraJaponica), procured from the wood of the Acacia catechu. It is veryastringent, sweetish, and without smell.Incompatible with alkaline and metallic salts, and with gelatine.Medicinally it is employed to check diarrhoeas, dysentery, and haemor-rhages; also in relaxations or atonic disorders of the primae vise,sponginess of the gums, &c.Dose, from gr. x to gr. xx of the powder. It is also exhibited in form

of tincture, infusion, and lozenge.Enters into Elect. Mimosa; Catechu. E. D. Infus. Catechu. L. E.Tinct. Catechu. L. E.

Cathartics. Purgative medicines of stronger efficacy than aperientsor laxatives. See Conspectus of Prescriptions.

Cathartic Extract. Extract um Colocynth. Comp.

Cathartic Balls in Farriery. See Ball.

Cathartic Mass. Take ftvj of Cape aloe's, feiij of treacle, ihj of oliveoil. Melt together in a water bath, and stir till well mixed.Dose, from one ounce to two. (Pharjm. Veterinary Coll.)

Cathartin. New. An alkaline substance found by MM. Lassaigneand Feneulle in the pods and leaves of senna. It is solid, yellowish-brown, of a peculiar odour, and nause'ously bitter. It is verySoluble in all proportions in water and alcohol; but not at all in ether.

On exposure to the air it becomes moist.Medicinally it has not yet been used.

Catheters differ from bougies in being hollow, while bougies are im-perforate ; but the terms are frequently confounded. Catheters aremade of silver or other metal, or of the same elastic compositionwith bougies as described under that word.

Catholicon. A kind of soft purgative electuary, so called as being sup-posed of universal efficacy.

Catholicon Duplicatum Rheo. P. The Double Catholicon ofNicolai, or Compound Electuary of Rhubarb, is prepared by simmer-ing over a slow fire ibss of polypody root; gij of succory root; ^j ofliquorice root; 3'iij of the leaves of agrimony and spleenwort; Ibvjof water till reduced two-thirds; add 5vj of fennel-seeds, strain and