Patent ID: 8287848

Claim:
A process for preparing an orally ingestible aqueous iron suspension in situ comprising: combining a pharmaceutically acceptable cation exchange resin with an aqueous solution comprising an antioxidant and a ferrous iron to form an aqueous suspension; stirring the aqueous suspension for a sufficient amount of time to permit formation of a ferrous-ion exchange resin complex comprising about 25% to about 70% by weight ferrous iron based on the weight of the ferrous-ion exchange resin complex; optionally combining one or more additional active components with said aqueous suspension prior to completion of complex formation; and mixing said aqueous suspension comprising the ferrous-ion exchange resin complex with one or more active or inactive components to form the orally ingestible ferrous aqueous suspension, wherein the process is performed in a single container without the need for isolation or drying of the mineral-ion exchange resin complex prior to forming the orally ingestible liquid suspension.