“…In addition, when the relationship of CBZ to immunoglobulin levels is evaluated, data from the literature are often contradictory. The reduction in serum IgA levels is the change most frequently reported after the use of anticonvulsants, with total and partial immunodeficiency having been reported 3,8,[9][10][11] . Symptoms similar to those of patients with primary IgA deficiency may arise in these patients, such as recurrent infections, greater prevalence of atopy, autoimmune diseases such as systemic lupus erythematosus, and lymphoproliferative diseases such as lymphomas 11 .…”