<prompt> Which of the following agents is useful for the oral treatment ofboth pituitary as well as renal diabetes insipidus?VasopressinHydrochlohiazideChlorpropamideCarbamazepine  <response>: Ref: KDT 6e p577, 578 Thiazides are useful in the treatment of central as well as nephrogenic DI. Vasopressin, chlorpropamide and carbamazepine are useful only in central DI. 