Dietary Supplement. 45 mg (from 144 mg dried ferrous sulfate USP). One per day. Gentle on your system. Balanced health. Compare to Slow FE (Slow FE is a registered trademark of Novartis Consumer Health, Inc.). Questions? 1-888-423-0139. This product was formulated to provide gradual release of active material for absorption over an extended period of time. Slow release iron tablets are specialty formulated to deliver high potency iron in a sustained, timed release format over 4 to 6 hours. Made with 144 mg of dried ferrous sulfate USP, equivalent to 45 mg elemental iron. No artificial flavors, no sugar, no wheat, no preservatives, dairy free. This TopCare product is laboratory tested to guarantee its highest quality. Your total satisfaction is guaranteed. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.)