USP Verified Dietary Supplement: USP tablets. This product meets the USP standards for strength, quality, and purity. High Potency Iron Supplement. Ferrous gluconate. Compare to the ingredients in Fergon (CVS Health Iron 27 mg is not manufactured or distributed by Bayer HealthCare LLC, distributor of Fergon). Easy to swallow tablets. This product is for use as a dietary iron supplement. Child resistant cap.