Neratinib maleate is an irreversible, orally active and highly selective inhibitor of HER2 and EGFR with IC50 values of 59 nM and 92 nM, respectively.Neratinib maleate has antitumor activity and can be used to treat gastrointestinal, respiratory, genitourinary, and cutaneous and musculoskeletal diseases, and can be used to study breast and prostate cancer. used in the study of breast and prostate cancer.