Medical Dictionary


noun imat·i·nib \i-ˈma-tə-ˌnib\
variants: or

imatinib mesylate

Medical Definition of imatinib

  1. :  an anticancer drug taken orally in the form of its mesylate C29H31N7O·CH4O3S to treat chronic myelogenous leukemia and metastatic or unresectable gastrointestinal stromal tumors Imatinib acts by inhibiting the abnormal tyrosine kinase produced by the Philadelphia chromosome. It is marketed under the trademark Gleevec.

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