Gefitinib (Iressa)

Iressa ( Brand Name ) is used to treat non-small cell lung cancer in people who have already been treated with certain other chemotherapy medications and have not improved or whose condition has worsened.
Iressa is in a class of anti-cancer medications called epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors. It works by blocking the action of a certain naturally occurring substance that may be needed to help cancer cells multiply.

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