PNU 37883 hydrochloride

Novel antagonist selective for the vascular form of K ATP channel; inhibits K ATP currents in isolated mesenteric artery smooth muscle cells (K d = 65 nM) but not in cardiac or skeletal myocytes. In vivo, inhibits blood vessel relaxation and hypotension induced by pinacidil. Displays weak diuretic effects.

room temperature (desiccate)