<qa>  What is the most common iron preparations used in?This phenomenon of phosphorus deficiency has not been documented in the commonly used preparations of iron sucrose venofer and ferric gluconate ferrlecit. These non-dextran iron preparations have a very low rate of allergic reactions and adverse events. They are used in various cases of iron deficiency anemia with normal renal function, such as patients with Inflammatory bowel disease , diabetics or in people who cannot tolerate oral iron therapy. Moreover, certain oral iron preparations are under investigation at present for their role as phosphorus binders. 