Answer
It can reduce heart-pumping function or cause heart failure, sometimes without early symptoms. Baseline and repeat assessments help detect changes promptly.
Sources for this answer
- Herceptin 600 mg Solution for Injection in Vial — Current selected SmPCemc · Summary of Product Characteristics
- Herceptin 150mg Powder for 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.