Desmopressin is the synthetic analog of the antidiuretic hormone arginine vasopressin. Vasopressin Receptor The antidiuretic properties of desmopressin have led to its use in polyuric conditions including primary nocturnal enuresis nocturia and diabetes insipidus.

Selective vasopressin V1A receptor antagonist. Inhibits vasopressin and oxytocin-induced increases in intracellular calcium concentrations in vitro (IC50 values are 5 and 30 nM respectively). Exhibits potent and prolonged antivasopressor activity and induces anxiolytic-like effects in the dorsal, but not ventral, hippocampus in vivo.

Conivaptan (YM-087)?is a potent, selective nonpeptide vasopressin V1A and V2 receptor antagonist with Ki of 0.48 nM and 3.04 nM respectively.