The synthesis and antiarrhythmic activity of N-aryl-8-pyrrolizidinealkanamides are described. The target compounds were evaluated for their ability to protect against chloroform-induced fibrillation in mice. Many of them were found to have antifibrillatory activity comparable to that of lidocaine; several are more potent than lidocaine. N-(2, 6- Dimethylphenyl)-8-pyrroliiidineacetamide (64, which was found to be more potent and ...