Iodide of Starch. Prepared by rubbing Iodine (gr. xxiv. moistened with a few drops of spirit) with Starch (oz.j.) until the powder assumes a uniform blue colour, and drying with a gentle heat so as not to drive off the Iodine; it is to be kept in well-stoppered bottles.
Med. Prop. and Action. This preparation was first proposed by Dr. Buchanan,* of Glasgow, as the best mode of administering Iodine, as by this means he considered that it might be introduced into the system in far larger quantities, and in a comparatively short period, without the occurrence of that gastric irritation and other unpleasant symptoms which occasionally attend the exhibition of Iodine in its free state. The average dose is a teaspoonful, given in water-gruel thrice daily, and the dose gradually increased to a table-spoonful or more. Testimonies in its favour have been recorded by M. Quesne-villet and M Droste; and though it is evident from the statements of Prof. Forget § that very large quantities may be taken with impunity, yet from a case related by Dr Laurie, || it appears that in some constitutions it may produce serious or even fatal consequences. Unless carefully prepared, it is easy to understand how the iodine thus given in large doses may be productive of untoward accidents.
* Med. Gazette, July 2, 1836. Ann. de Therap., 1851, p. 262. Canstatt's Jahresbericht, 1361, Bd. v. S. 73.
§ Gaz. des H6pitaux, Feb. 19, 1839 || Med. Gazette, 1840, p. 590.
In a case of Ascites related by M. Burguet * the abdomen was covered with a thick layer of Iodide of Starch (Iodine j., Starch xij.), under which the dropsical effusion gradually disappeared. As a local application to Ulcerated Wounds and to Chronic Ulcers of all descriptions, Dr. Castax. an Army Surgeon in Algeria, states that for several years he employed the Iodide with great success.