Poultice, kaolin

In oral medicines, kaolin has been used as a diluent in tablet and capsule formulations it has also been used as a suspending vehicle. In topical preparations, sterilized kaolin has been used in poultices and as a dusting powder. Therapeutically, kaolin has been used in oral antidiarrheal preparations. ... 

Poultice of Kaolin, B.P. A mixture of kaolin, 52 7, boric acid, 4 5, volatile matter, 0 3 and glycerin, 42 5 parts. 

Certain minerals also have a therapeutic use, as discussed in the preceding section. For example, kaolin has found medicinal use in poultices, and has good adsorptive properties. Kaolin is frequently employed... 

Kaolin is practically insoluble in water and organic solvents. It is also insoluble in mineral acids and solutions of alkali hydroxides. Unless sterilized, it may be heavily contaminated with pathogenic microorganisms, such as bacillus anthracis, clostridium tetani and clostridium welchii. It can be sterilized by maintaining the whole at a temperature not less than 160°C for not less than one hour. The primary applieations of Kaolin USP in the pharmaceutical industry are as an adsorbent at eoneentrations of 7.5 to 55%, dusting powders at 25%, and poultices at a level of 53%. Kaolin has also been used as a diluent in tablet and capsule formulations. Kaolin Mixture with Pectin (Gennaro, 1990), an example of a pharmaceutical adsorbent formulation, is shown below. 

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