What are the properties of Feramax® Pd Therapeutic 150?

Feramax® Pd Therapeutic 150 is positively charged and soluble at pH < 4.0. This solubility at low pH may be associated with improved absorption.
X-ray diffraction analysis shows that polysaccharide-iron complexes have a ferrihydrite (β-FeOOH) structure that closely resembles the structure of ferritin, the natural intracellular protein that binds iron in duodenal cells.

The fact that the polydextrose-iron complex closely resembles endogenous carriers of iron could account for its high bioavailability and reduced side effects.