Trastuzumab is used to treat certain types of breast, stomach, or esophagus cancer. This medication is used to treat tumors that produce more than the normal amount of a certain substance called HER2 protein. Trastuzumab belongs to a class of medications known as monoclonal antibodies... This monograph is about the following trastuzumab products: trastuzumab, trastuzumab-anns, trastuzumab-dkst, trastuzumab-dttb, trastuzumab-pkrb, trastuzumab-qyyp. View More Info

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