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Immunoglobulin preparations used in intravenous infusion, containing primarily IMMUNOGLOBULIN G. They are used to treat a variety of diseases associated with decreased or abnormal immunoglobulin levels including pediatric AIDS, primary HYPERGAMMAGLOBULINEMIA, SCID, CYTOMEGALOVIRUS infections in transplant recipients, chronic lymphocytic LEUKEMIA, Kawasaki syndrome, infection in neonates, and IDIOPATHIC THROMBOCYTOPENIC PURPURA.