Verapamil reduced only the norepinephrine or urotensin II induced contraction while in the existence of extracellular Ca2+, with little if any improve within the contraction in Ca2+-free buffer. The urotensin I induced rest response in aortic strips contracted by 40 mM KCl was enhanced by pretreatment with papaverine or forskolin. https://waltt111lxj5.win-blog.com/profile