Anthracyclines are a group of chemotherapy drugs. They are a type of cytotoxic antibiotic. This group of drugs includes aclarubicin, daunorubicin, doxorubicin (Adriamycin), epirubicin and idarubicin. Mitoxantrone (used to be called mitozantrone) is made from anthracyclines, so is sometimes included in this group.