<prompt> True regarding conivaptan isVasopressin antagonistV2 selective actionOral drugTreatment of hypernatremia  <response>: vasopressin receptor antagonists interfere with action at the vasopressin receptors. Used in the treatment of hyponatremia, especially in patients with congestive hea failure, liver cirrhosis or SIADH. EG conivaptan, tolvaptan, lixivaptan, satavaptan REF KD Tripathi 8th ed 