Which drug is not used in SIADH -: (A) Fludrocoisone, (B) Demeclocycline, (C) Desmopressin, (D) Hypeonic saline
Answer is C. demeclocycline inhibit vasopression action in renal distal tubule.severe hyponatremia require treatment with hypeonic saline and fludrocoisone ( Harrison 17 pg 620)