abstract |
An object of the present invention is to provide a powder containing iron pyrophosphate, which can obtain high iron absorptivity as a main component of an oral iron agent. The solution is a composite powder containing iron pyrophosphate, which contains iron pyrophosphate and sodium components, and is characterized by: (1) the content of iron pyrophosphate is 95% by weight or more; (2) (Fe + Na ) / P molar ratio is 0.8 ~ 1.0. |