while currently available antiarrhythmic agents fail to achieve the desired effect , the recent evidence dealing with the quaternary ammonium derivatives of propranolol , lidocaine , and bretylium provides some hope for the future development of drugs with antiarrhythmic as well as antifibrillatory properties which may provide a therapeutic approach to the prevention of scd .
C0023660
lidocaine
C0003195
antiarrhythmic