Orofer S 100 Injection contains Iron Sucrose 100mg/5ml and is indicated for the treatment of iron deficiency anemia, particularly in patients with chronic kidney disease or those who are unable to tolerate or absorb oral iron preparations. Iron Sucrose is a complex of polynuclear iron(III)-hydroxide in sucrose, which serves as an intravenous iron supplement to replenish iron stores and facilitate erythropoiesis. The injection is administered intravenously, allowing for rapid correction of iron deficiency by delivering bioavailable iron directly into the bloodstream, bypassing gastrointestinal absorption limitations. Orofer S 100 is typically used in patients requiring iron replacement therapy due to inadequate dietary intake, blood loss, or increased iron demand. It is essential to monitor serum ferritin and transferrin saturation levels to assess iron status and guide dosing. Adverse reactions may include hypersensitivity, hypotension, nausea, and injection site reactions; therefore, administration should be conducted under medical supervision with emergency measures available. Contraindications include known hypersensitivity to iron sucrose or any component of the formulation, and conditions with iron overload. Orofer S 100 Injection offers an effective and well-tolerated option for intravenous iron therapy in appropriate clinical settings.