Gamunex is indicated as replacement therapy of primary immunodeficiency (PI) states in which severe impaiment of antibody forming capacity has been shown, such as congential agammaglobulinemia, common variable immunodeficiency, X-limked immunodeficiency with hyper IgM, Wiskott- Aldrich syndrom, and severed combined immunodeficiencies. Gamunex is also indicated in Idiopathic Thrombocytopenia Purpura (ITP) to raise platelet counts to prevent bleeding or to allow a patient with ITP to undergo surgery.Treatment of Chronic Inflammatory Demyelinating Polyneuropathy (CIDP).