We report insulin autoimmune syndrome in a diet-controlled type 2 diabetes mellitus
patient. She developed recurrent attacks of severe hypoglycemia 1 week after the initiation
of clopidogrel. The evaluation revealed high insulin and C-peptide levels consistent
with hyperinsulinemic hypoglycemia. The insulin-to-C-peptide ratio was reversed and
>50. Anti-insulin antibody titers were highly positive.
Keywords
Clopidogrel - hyperinsulinemic hypoglycemia - insulin autoimmune syndrome - severe
hypoglycemia - type 2 diabetes mellitus