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What Is FeroSul?

FeroSul is a brand of ferrous sulfate iron supplement. A labeled 325 mg ferrous sulfate tablet supplies 65 mg of elemental iron. Iron helps the body make hemoglobin, the protein in red blood cells that carries oxygen.

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What Is FeroSul?

FeroSul is a brand of ferrous sulfate iron supplement. A labeled 325 mg ferrous sulfate tablet supplies 65 mg of elemental iron. Iron helps the body make hemoglobin, the protein in red blood cells that carries oxygen.

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What Is FeroSul Used For?

FeroSul supplies iron when dietary intake or iron stores are insufficient. A clinician can recommend iron supplements to treat iron deficiency or iron deficiency anemia. The cause of low iron should also be assessed, since iron will not treat every type of anemia.

How Does FeroSul Work?

After a tablet is swallowed, iron is absorbed through the digestive tract. The body uses it to make hemoglobin and replenish iron stores. Blood tests can show whether iron levels and red blood cell counts are improving.

How Is FeroSul Taken?

Follow the directions on the specific package or the schedule given by a clinician. Taking iron with food can reduce stomach upset, although food can decrease absorption. Ask a pharmacist how to separate iron from medicines or supplements that interfere with its absorption.

What Are the Side Effects and Precautions?

Constipation, nausea, stomach discomfort, and darker stools can occur. Taking too much iron can cause serious poisoning, especially in young children. Keep FeroSul out of their reach and seek urgent help after a suspected overdose.

Frequently Asked Questions About FeroSul

What is the difference between ferrous sulfate and elemental iron?

Ferrous sulfate is the compound in the tablet, while elemental iron is the amount of iron it supplies. Check the product label for both amounts.

Can FeroSul cause dark stools?

Yes. Iron supplements can darken stool. Tell a clinician about stool that is tarry or accompanied by other concerning symptoms.

Can FeroSul treat every type of anemia?

No. It supplies iron and is suitable when iron deficiency is present. Other causes of anemia need different evaluation and treatment.

Why must FeroSul be kept away from children?

Even a small number of adult iron tablets can poison a young child. Call a poison control center or seek emergency care immediately after a suspected ingestion.

References

FeroSul Green (Label) | Dietary Supplement Label Database (DSLD) | NIH Office of Dietary Supplements. NIH Office of Dietary Supplements (DSLD). https://dsld.od.nih.gov/label/202147. Date Accessed October 6, 2026.

Iron overdose. MedlinePlus. https://medlineplus.gov/ency/article/002659.htm. Date Accessed October 6, 2026.

Iron Supplements. MedlinePlus. https://medlineplus.gov/druginfo/meds/a682778.html. Date Accessed October 6, 2026.

Iron Supplements for Anemia (Ferrous Sulfate): Benefits. Cleveland Clinic. https://my.clevelandclinic.org/health/drugs/14568-iron-oral-supplements-for-anemia?tag=makemoney0821-20. Date Accessed October 6, 2026.

Taking iron supplements. MedlinePlus. https://medlineplus.gov/ency/article/007478.htm. Date Accessed October 6, 2026.