DEFINITION

Technetium Tc 99m Pyrophosphate Injection is a sterile, aqueous solution, suitable for intravenous administration, of pyrophosphate that is labeled with ^99mTc. It contains NLT 90.0% and NMT 110.0% of the labeled amount of ^99mTc as pyrophosphate expressed in megabecquerels (microcuries or millicuries) per milliliter at the time indicated in the labeling. It may contain antimicrobial agents, buffers, reducing agents, and stabilizers. Other chemical forms of radioactivity are NMT 10.0% of the total radioactivity.