» Technetium ^99mTc Fanolesomab Injection is a sterile, nonpyrogenic preparation of anti-CD15 antibody, a partially reduced murine IgM monoclonal antibody that is labeled with ^99mTc and is suitable for intravenous administration. It may contain reducing agents, buffers, and stabilizers. It contains no antimicrobial agents. Other chemical forms of radioactivity do not exceed 10 percent of the total radioactivity.