Vasopressin V2 (SR121463A) and V1a (SR49059) receptor antagonists both inhibit desmopressin vasorelaxing activity.

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Mechaly I, Laurent F, Portet K, Serrano J, Cros G

Vasopressin V2 (SR121463A) and V1a (SR49059) receptor antagonists both inhibit desmopressin vasorelaxing activity.

Eur J Pharmacol. 1999 Nov 3;383(3):287-90.

PubMed ID
10594321 [ View in PubMed
]
Abstract

Although [Arg(8)]vasopressin is a potent vasoconstrictor, it possesses vasorelaxant properties manifested either after vasopressin V1 receptor blockade or directly in some vascular beds. The nature of the receptor involved in the vasorelaxant effect of [deamino-Cys(1) D-Arg(8)]vasopressin (desmopressin), a vasopressin V2 receptor agonist, was studied on rat precontracted aortic rings by the use of highly selective new non-peptide vasopressin receptor antagonists. The present study demonstrates for the first time that desmopressin relaxant effect is antagonized by the vasopressin V2 receptor antagonist SR121463A, but also by the vasopressin V1A receptor antagonist SR49059, suggesting that desmopressin-induced relaxation is mediated by a receptor subtype sharing both V1A and V2 pharmacological profiles.

DrugBank Data that Cites this Article

Drug Targets
DrugTargetKindOrganismPharmacological ActionActions
DesmopressinVasopressin V1a receptorProteinHumans
Yes
Not AvailableDetails