Answer
Arsenic trioxide is recognised as a human carcinogen. The product information advises long-term clinical monitoring for second primary malignancies.
Sources for this answer
- Trisenox (arsenic trioxide) 2mg/ml Concentrate for Solution for Infusion — 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.