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Ferrous Oxide

Medically reviewed by Drugs.com. Last updated on Jun 15, 2022.

Excipient (pharmacologically inactive substance)

What is it?

Ferrous oxide (FeO), or iron (II) oxide, is an iron oxide and exists as a black powder. It is not rust (ferric oxide). Iron(II) oxide makes up part of the earth's mantle. Synthetic iron oxide is approved for used as a pigment in certain foods, cosmetics, contact lenses and drugs.[1][2]

Top medications with this excipient

References

  1. [1]FoodFacts.com Ingredient Glossary - iron oxides. Accessed March 30, 2014. http://www.foodfacts.com/food-ingredients/Iron-Oxides/4607
  2. FDA. For Industry. Summary of Color Additives for Use in the United States in Foods, Drugs, Cosmetics, and Medical Devices. Accessed April 1, 2014. http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfCFR/CFRSearch.cfm?fr=73.1200

Further information

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