 - Fasting plasma glucose 7.0 mM and HbA1c 48 mmolmol 3 month after RYGB. Hemoglobin 6.5mM. Previous anaphylaxis when treated with Januvia or Byetta. Allergy for sitagliptin. Dysregulated hypothyroidism. Use of antithyroid treatment. Late diabetic complications as retinopathy, renal insuffiency, neuropathy or previous pancreatitis. Bad compliance. 