(I-duh-ROO-bih-sin HY-droh-KLOR-ide) 
A drug used with other drugs to treat adults with acute myeloid leukemia. It is also being studied in the treatment of other types of cancer. Idarubicin hydrochloride blocks a certain enzyme needed for cell division and DNA repair and may kill cancer cells. It is a type of anthracycline antibiotic and a type of topoisomerase inhibitor. Also called 4-demethoxydaunorubicin and Idamycin PFS.