in a double-blind study of 283 patients ( 140 given iodamide and 143 diatrizoate ) , meglumine iodamide 24 % produced a significantly greater degree of opacification than meglumine diatrizoate 30 % ( p less than 0.01 to p less than 0.001 ) in the renal calyces during the early phase of drip infusion pyelography .
C0021961
iodamide
C0065884
meglumine iodamide