Iron 44mg/5mL (as sulfate 220mg/5mL); contains alcohol 5%. Nausea, abdominal discomfort and pain, constipation, diarrhea, masks occult bleeding, black stools, tooth discoloration (elixir).

The iron supplement ferrous sulfate is an iron salt with the chemical formula FeSO 4. Iron salts are one type of the mineral iron. People often use them as a supplement to treat iron deficiency.