However, plasma AVP measurement in patients with thiazide-induced hyponatremia has produced conflicting results, with some studies reporting elevated AVP concentrations (Fichman et al., 1971; Luboshitzky et al., 1978), while others did not (Friedman et al., 1989; Frenkel et al., 2015; Ware et al., 2017). Here, AVP is linked to Hyponatremia.