A handbook of local therapeutics / edited by Harrison Allen.

Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: A handbook of local therapeutics / edited by Harrison Allen. Source: Wellcome Collection.

    178/554 (page 166)
    LOCAL THERAPEUTICS. speaks highly of its antiseptic properties, and advises its use as a topical application for slight wounds, etc., as being non-toxic in its action. It is also used as an antipruritic in skin diseases. Camphorated Salol. Camphorated salol is a mixture of two parts of powdered camphor and three parts of salol. A gentle heat is applied until all the ingredients are melted. Camphorated salol is a colorless liquid, insoluble in water, but very soluble in ether, chloroform, and in oils. It rapidly decomposes when exposed to the air and light. Diseases of the Ear.—Pegou employs camphorated salol in the treatment of Otorrhcea. It is applied pure on the end of a cotton tampon. CANNABIS INDICA. Indian Hemp. Cannabis indica owes its medicinal properties in largest degree to its resin, and in less degree to a volatile oil. The local action of Indian hemp is that of a sedative. Indian hemp is included by W. H. Beverly {Brit. Med. Jour., September 6, 1884) as an ingredient of a powder for insufflation in Hay Fever. CANTHARIS. Cantharides. Spanish Fly. The Spanish Fly is a beetle about one inch (25 mm.) long and a quarter of an inch (6 mm.) broad, with ample, membranous, transparent, brownish wings; elsewhere of a shining coppery-green color; the powder is grayish-brown, and contains green shining particles. (U. S. P.) The vesicating principle has been isolated, and is called canthari- din. The official preparations of cantharides are the Cerate (thirty-five parts of can- tharides in powder in one hundred parts of the finished product, the other ingredients being yellow wax, resin, and lard); the Ceratum Extracti Canthandis (in the preparation of which there is first made an extract of cantharides, and this extract added to a mixture of yellow wax, resin, and lard, so that each one hundred parts contains the extract from thirty parts of cantharides); Charta Cantharidis (which is paper coated with a cantharidal plaster of the strength of one part of cantharides to sixteen of plas- ter) ; Collodiutn Cum Cantharide, prepared by making a strong chloroform tincture of cantharides and adding it to flexible collodion, so that one hundred parts of the finished product shall contain the blistering principle of sixty parts of cantharides; Linime7itutn Cantharidis (made by digesting fifteen parts of cantharis in oil of turpentine sufficient to make one hundred parts, and straining); and Tinctura of Cantharidis (containing five parts of cantharides in one hundred parts of alcohol). Cantharis is counter-irritant, and may be vesicant, and rubefacient, according to the method of use. General Surgery.—Cantharis is exceedingly irritating when applied to the skin, causing first redness with burning, then free vesication and