Immunoglobulins (including intravenous immunoglobulin (IVIG), gamma globulin or immune serum globulin) are substances derived from human blood plasma.
The plasma, processed from donated human blood, contains antibodies that protect the body against diseases.
Immunoglobulin injections or infusions are used in clinical medicine to treat patients with immune disorder conditions.
Some people think that some of the core symptoms of autism and some of the associated conditions, such as gastrointestinal problems, are caused by immunological deficiencies.
They also think that those deficiencies can be overcome by receiving immunoglobulins.