Cystografin is a radiopaque agent supplied in the form of sterile, clear, colorless, or sometimes as pale yellow form. Cystografin can be mobile or slightly viscous solution. Cystografin is used for retrograde cystourethrography. Cystografin contains edentate disodium as sequestering agent and elements of iodine. Cystografin is not recommended for intravascular injection.