Iron–Dextran is primarily used in medical and veterinary fields to treat iron deficiency anemia. It is administered via injection, making it effective for patients who cannot absorb iron efficiently through oral supplements. In humans, it is commonly prescribed for individuals with chronic kidney disease, those undergoing chemotherapy, or patients with gastrointestinal disorders that impair iron absorption. In veterinary medicine, it is widely used to treat anemia in piglets and other young animals, ensuring proper growth and development. The compound is valued for its ability to rapidly replenish iron stores and improve hemoglobin levels, making it a critical intervention in both clinical and agricultural settings.