A patient with common variable immunodeficiency and autoimmune hemolytic anemia was given high-dose (450 mg/kg) intravenous gamma globulin (Sandoglobulin) for five days, followed by single doses of 100 to 200 mg/kg at four-week intervals or whenever the hemoglobin level and hematocrit fell or the reticulocyte count increased. This treatment was accompanied by a stabilization of hematopoietic parameters and reversal of Coombs' positivity, which have been sustained for 34 months. The use of high-dose gamma globulin for autoimmune hemolytic anemia can eliminate the need for other therapeutic modalities that may be detrimental to an immunocompromised host.