Idarubicin hydrochloride (Zavedos), a hydrochloride salt form of Idarubicin, is a DNA topoisomerase II (topo II) inhibitor for MCF-7 cells ( IC50: 3.3 ng/mL).

Idarubicin, a potent anthracycline antileukemic agent, is orally active in its application. It functions by inhibiting topoisomerase II, thus interfering with DNA replication and RNA transcription. Furthermore, Idarubicin induces DNA damage, inhibits DNA synthesis, and suppresses c-myc expression. It also demonstrates inhibitory effects on the growth of bacteria and yeasts [1] [2] [3] [4] [5].