» Technetium Tc 99m Disofenin Injection is a sterile, aqueous solution, suitable for intravenous administration, of disofenin that is labeled with ^99mTc. It contains not less than 90.0 percent and not more than 110.0 percent of the labeled amount of ^99mTc as a disofenin complex, expressed in megabecquerels (microcuries or millicuries) per mL at the time indicated on the labeling. It contains a suitable reducing agent.