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
[{'content': 'Tolvaptan is used for \nSelect and explain. \nA. Von Willebrand Disease, B. Catecholamine resistant Shock, C. Central DI, D. SIADH', 'role': 'user'}, {'content': "Answer: D \nExplanation: Tolvaptan:- * Tolvaptan is a selective Vasopressin V2 receptor antagonist indicated in treatment of euvolaemic or hypervolaemic hyponatremia (Na+ < 125mEq/L or clinically symptomatic hyponatraemia, in spite of fluid restrictive corrective measures), including patients with Syndrome of Inappropriate ADH Secretion and Hea Failure. * Bater and Schwaz criteria defines SIADH as follows: Ref:- Goodman & Gilman's Pharmacological basis of Therapeutics 13th Ed; Pg Num:- 466", 'role': 'assistant'}]