Ionic composition and cardiotoxicity of dimeric contrast media at injection into the coronary arteries of rabbits

The relation between ionic composition and cardiotoxicity of two dimers, iocarmate and iozomate, was investigated by selective injection into the left and right coronary arteries, Least toxic reactions developed at a sodium concentration of 263 to 315 mmol/l for sodium-meglumine iocarmate and 271 to 379 mmol/l for sodium-meglumine iozomate.