printed Italian Converse product shoes Floral handicraft Women's style Vintage hand The term “immunoglobulin” refers to the breakdown of blood plasma that contains antibody. IVIg is a blood product which is administered intravenously. It contains polyvalent IgG antibodies which are extracted from the plasma of more than thousand of blood donors. Individuals who are unable to produce adequate amount of antibodies, such as patients with common variable immunodeficiency, Wiskott Aldrich Syndrome, X-linked agammaglobulinemia and other forms of hypogammaglobulinemia, get benefit from IVIg to maintain the appropriate level of antibodies in the body.