exenatide, an antidiabetic drug. ▪ INDICATIONS: This drug is given in combination with metformin or a sulfonylurea to treat type 2 diabetes mellitus. ▪ CONTRAINDICATIONS: Known hypersensitivity to this drug prohibits its use. ▪ ADVERSE EFFECTS: Adverse effects of this drug include feeling jittery, restlessness, weakness, nausea, vomiting, diarrhea, dyspepsia, anorexia, gastroesophageal reflux, and weight loss. A life-threatening side effect is hypoglycemia. Common side effects include headache and dizziness.