Dextran is widely used in the medical field as a plasma volume expander, particularly in cases of shock or severe blood loss, to restore blood volume and maintain circulation. It is also employed in intravenous therapy to improve blood flow and prevent clotting. In the pharmaceutical industry, dextran serves as an excipient in drug formulations, enhancing stability and solubility. Additionally, it is utilized in biotechnological applications, such as chromatography, for separating and purifying proteins and other biomolecules. In ophthalmology, dextran is a component of certain eye drops to relieve dry eye symptoms. Its biocompatibility and versatility make it valuable in various medical and industrial applications.