GW572016. Definition

Medical Definition: GW572016

A drug used with another anticancer drug to treat breast cancer that is HER2 positive and has advanced or metastasized (spread to other parts of the body) after treatment with other drugs. GW572016 also being studied for treating other cancers. A type of dual inhibitor of tyrosine kinase ErbB-2 and EGFR. Also called lapatinib ditosylate, lapatinib, and Tykerb.

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