Iron–Dextran is primarily used in medical and veterinary fields to treat iron deficiency anemia. In humans, it is administered via injection to rapidly replenish iron levels, especially in patients who cannot tolerate oral iron supplements or have conditions like chronic kidney disease. In veterinary medicine, it is commonly given to piglets and other young animals to prevent anemia caused by low iron levels in their diet. The compound ensures efficient iron delivery to the body’s tissues, promoting the production of hemoglobin and improving overall health. Its use is critical in situations where quick and effective iron supplementation is necessary.