This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Pancreatitis is an ADR of which antidiabetic? 
Select and explain. 
A. Vildagliptin, B. Metformin, C. Glibenclamide, D. Insulin
A: Vildagliptin
Answer: A: Vildagliptin 
Explanation: Pancreatitis can be seen with DPP4 inhibitors like vildagliptin. Other drugs in this group are sitagliptin, saxagliptin. They inhibit the DPP4 enzyme and increse the t half of incretins to increase the insulin production. Ref: KD Tripathi 8th ed.