Druckschrift 
The London Dispensatory, containing : 1. the Elements of Pharmacy ; 2. the botanical Description, natural History, chemical Analysis, and medicinal Properties of the Substances of the Materia Medica ; 3. the pharmaceutical Preparations and Compositions of the Pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians ; the Whole forming a Practical Synopsis of Materia Medica, Pharmacy, and Therepeutics
Entstehung
Seite
605
URN (Seite)
  
Rechtsdrehung 90°Linksdrehung 90°
  
  
  
  
  
 
Einzelbild herunterladen
 

PART III.

Mucilages.

605

produces scarcely any alteration; no change is produced by-spirit of nitric ether; but sulphuric ether and compound spiritof ether precipitate a thick, white, tenacious curd. Tincture ofmuriate of iron, even when diluted, converts mucilage into abrownish or orange-coloured, insoluble jelly; and acetate oflead gives a copious, dense, flaky precipitate; while no changeis produced by the solutions of the following metallic sub-stances : superacetate of lead, green sulphate of iron, sulphateof zinc, oxymuriate of mercury, and tartarized antimony;nor by the alkalies or neutral salts. Mucilage, like gum, servesto combine resins and oils with water, for which purpose, andto give tenacity to pills, it is much employed in pharmacy.

Medical properties and uses. — The properties of mucilage arethe same as those of gum. (See Part ii.) It is the usual basisof demulcent mixtures for allaying the tickling which excitescough in catarrh and phthisis; and combined with opium andother narcotics, it is useful in diarrhoea, dysentery, calculousaffections, and ardor urinse. The dose of mucilage may be•from fgfe. to fSj. frequently repeated.

Officinal preparations. Mistura Guaiaci. L. Potio CarlonatisCalcis. E.

MUCILAGO ASTRAGALI TRAGACANTHiE.Edin. Mucilage of Tragacanth. 1

"Take of gum tragacanth, in powder, txvo drachms; boilingwater, eight ounces. Macerate for twenty-four hours, and tri-turate the gum carefully, that it may be dissolved ; then strainthe mucilage through linen."

Mucilago Gummi Tragacanthje. Dub. Mucilage of GumTragacanth.

" Take of gum tragacanth, in powder, two drachms; water,eight fluid ounces. Macerate in a covered vessel until the gumbe dissolved; then strain the mucilage through linen."

Tragacanth treated in this manner forms a thick, soft, veryviscid mucilage, but the diffusion in the water is not uniform:nor does it become so even when boiled. It may be used in thesame cases as mucilage of gum arabic. It has been recom-mended by M. Blaire, a French surgeon, as a remedy in burns.He directs linen rags, or bibulous paper soaked in the muci-lage, to be applied over the affected part, which must be alsokept moist with the mucilage for some days. 2 It is chiefly em-ployed for making pills and troches.

MUCILAGO AMYLI. Lond. Edin. Dub. Mucilage ofStarch.

1 Mucilage de gimme Adraganthe (F.) Schlieim de Tragamh (67.) Mucilgomma Adragame (/.)

z Vide London Med. Repository, vol. iii. p. 25?.

 
Seiten anSeiten aus
Text aus