“…Earlier intravenous preparations such as colloidal ferric hydroxide and colloidal ferric oxide proved to be too toxic (Goethsch, Moore & Minnich, 1946) and the first practical form of intravenous therapy was a saccharated iron oxide compound (Nissim, 1947) but even with this substance a significant number of severe toxic reactions occurred (Barrit & Swain, 1953;Librach, 1953;Nissim, 1954;Ross, 1957;Bare & Sullivan, 1960).…”