Salts of iodine, those which are especially used in medicine being potassium and sodium iodides. They are used to assist in providing a supply of iodine in patients with goitre, or in individuals who live in an area where goitre is liable to occur because of a deficiency of IODINE in the drinking water. They may be given in the form of iodised salt. (See THYROID GLAND, DISEASES OF – Goitre.)