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What is Phesgo used for?

This product contains 3 ingredients: pertuzumab, trastuzumab, and hyaluronidase. It is used to treat a certain type of breast cancer. The cancer cells make more than the usual amount of a certain substance in your body (HER2 protein). Pertuzumab and trastuzumab belong to a class of medications known as monoclonal antibodies. These medications work by slowing or stopping the growth of cancer cells. This product also contains hyaluronidase, which helps your body absorb pertuzumab and trastuzumab given by injection under the skin. This monograph is about the following pertuzumab/trastuzumab/hyaluronidase product: pertuzumab/trastuzumab/hyaluronidase-zzxf.




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Phesgo Frequently Asked Questions

This medication may cause serious heart problems, including heart failure. The risk of heart problems is increased if you also use an anthracycline (such as doxorubicin). Your doctor may stop treatment with this medication if heart problems occur. Tell your doctor right away if you have any symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain).

This medication can cause serious (possibly fatal) harm to an unborn baby if used during pregnancy. Your doctor should order a pregnancy test before you start this medication. It is important to prevent pregnancy while taking this medication. Consult your doctor for more details and to discuss the use of reliable forms of birth control while using this medication and for 7 months after the last dose. If you are planning pregnancy, become pregnant, or think you may be pregnant, tell your doctor right away.

Serious (possibly fatal) breathing problems may happen with your injection. Get medical help right away if you have coughing or trouble breathing.

IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

Phesgo Dosage and Form Information

600-600 Mg