Sentinel Ferrous Sulfate is an iron supplement containing 325mg of ferrous sulfate (65mg elemental iron) per tablet. This dietary supplement comes in a bottle of 100 tablets and is designed to help prevent and treat iron deficiency anemia. Ferrous sulfate supplements are commonly prescribed to treat iron deficiency and maintain healthy iron levels in the blood. The 325mg dose provides 65mg of elemental iron, which is the form that can be absorbed by the body. This supplement should be taken under medical supervision, as iron can interact with certain medications and excessive iron intake can be harmful. Common side effects may include stomach upset, constipation, or dark stools. For better absorption, it's recommended to take iron supplements on an empty stomach or with vitamin C. Pregnant women, menstruating women, and those with diagnosed iron deficiency may need iron supplementation.