Drug not used in SIADH is:: (A) Demeclocycline, (B) Desmopressin, (C) Restriction of free water intake, (D) 3% NaCl
Answer is B. Desmopressin is ADH and will exacerbates the symptoms of SIADH. Hypeonic saline (3%NaCl) is used for severely symptomatic patients with hyponatremia. Demeclocycline decreases the release of ADH.