Drug not used in SIADH is:
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.
Demeclocycline
Desmopressin
Restriction of free water intake
3% NaCl
Kidney