Headache; vomiting, diarrhoea, constipation, nausea, abdominal pain; fatigue. Hypoglycaemia, diabetic retinopathy (patients w/ type 2 diabetes); dizziness, dysgeusia, dysaesthesia; gastritis, GERD, dyspepsia, eructation, flatulence, abdominal distension; cholelithiasis; hair loss; inj site reactions.