Abstract: Trastuzumab is a specific antagonist of human epidermal growth factor receptor-2(HER-2). It is the first molecular-targeted drug for the treatment of breast cancer. Since its market debut in 1998, trastuzumab has been in clinical application for more than 20 years. However, with the extension of clinical application, more and more adverse reactions are reported. By consulting the literature, the types, monitoring and prevention of trastuzumab related adverse reactions were reviewed in this paper so as to provide reference for clinical rational drug use.

Key words: trastuzumab, adverse reactions, cardiotoxicity, monitoring, prevention

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