Dictionary of Cancer Terms
View in Spanish: Iressa
Iressa (i-REH-suh)
A drug that is used to treat certain types of non-small cell lung cancer and is being studied in the treatment of other types of cancer. It is a type of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. Also called gefitinib and ZD1839.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.