Verapamil reduced only the norepinephrine or urotensin II induced contraction inside the existence of extracellular Ca2+, with little or no transform in the contraction in Ca2+-free buffer. The urotensin I induced relaxation response in aortic strips contracted by forty mM KCl was Increased by pretreatment with papaverine or forskolin. Pretreatment https://johny111kvo8.wikicorrespondence.com/user