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Ferrous sulfateOver the counter
Pronounced FAIR-us SUL-fate
Brand names: Feosol
Type: Iron supplement · All Other Medicines
What Ferrous sulfate is used for
- Iron deficiency anemia
- Preventing iron deficiency in pregnancy
◆ Kidney note
Oral iron is first-line for iron deficiency in earlier kidney disease; in dialysis, IV iron is often needed because absorption is poor.
Common side effects
- Constipation
- Black stools (harmless)
- Nausea
- Stomach cramps
- Metallic taste
Important cautions
- Iron overdose is a leading cause of poisoning death in young children — it must be stored locked away from children
- Blocks absorption of thyroid hormone and some antibiotics, and is blocked by antacids and calcium — timing is separated
How it comes
Tablets, liquid, extended-release tablets. This guide lists forms only — it never lists strengths or doses.
Related medicines — Other Medicines
Condition guides on MedicalVideos.com
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.