Herceptin (Trastuzumab)

Herceptin (trastuzumab) is a cancer medication that interferes with the growth and spread of cancer cells in the body. Herceptin is used to treat certain types of breast cancer or stomach cancer. Other cancer medicines are sometimes used in combination with Herceptin.

Trastuzumab is a monoclonal antibody – a type of targeted treatment. It has the brand name Herceptin. It is used for cancers that have large amounts of a protein called HER2 (human epidermal growth factor receptor 2).