Perjeta 420mg Injection – Pertuzumab (30mg/ml) – Roche Products – Pilcare – Exporter from India to Guyana youmobs 1 month ago Perjeta 420mg Injection – Pertuzumab (30mg/ml) – Roche Products – Pilcare – Exporter from India to Guyana Perjeta 420mg Injection is used to treat breast cancer. It belongs to group of medicine called monoclonal antibodies.