Suramin: a reversible P₂‐purinoceptor antagonist in the mouse vas deferens

Abstract

The trypanocide Suramin was tested as a possible antagonist at the P2-purinoceptor of the mouse vas deferens. At a concentration of 100 microM, Suramin antagonized the response to alpha,beta-methylene ATP, while responses to carbachol and noradrenaline were unaffected. These results suggest that Suramin may provide a starting point for the development of specific antagonists for P2-purinoceptors.