Answer
HER2-blocking treatments can reduce the heart's pumping function and occasionally cause heart failure, so cardiac function is checked before and during treatment.
Sources for this answer
- Phesgo 600 mg/600 mg, 1200 mg/600 mg solution for injection — 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.