Answer
It is not recommended during pregnancy. Breastfeeding requires a specialist discussion because infant exposure and harm are uncertain and other anticancer treatments must also be considered.
Sources for this answer
- Perjeta 420 mg Concentrate for Solution for Infusion — Current selected SmPCemc · Summary of Product Characteristics
- NHS Specialist Pharmacy ServiceNHS Specialist Pharmacy Service · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.