IVIG and SCIG are primarily used to treat immune deficiencies and autoimmune disorders. In cases of immunodeficiency, where the body lacks sufficient antibodies, Immune Globulin is administered to replenish these essential components, helping to restore the immune system's functionality. For patients with autoimmune disorders, Immune Globulin provides healthy antibodies that can block harmful immune responses. These healthy antibodies work by neutralizing unwanted autoantibodies, which are responsible for attacking the body’s own tissues, and facilitating their removal from circulation.

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Both IVIG and SCIG are crucial in managing complex health conditions, enhancing patient outcomes by improving immune response and reducing the frequency and severity of infections.