Answer
The kit is not radioactive before preparation. Adding technetium-99m creates the radioactive tracer, so preparation and administration require licensed facilities and radiation precautions.
Sources for this answer
- Stabilised Ceretec 500 micrograms kit for radiopharmaceutical preparation — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.