NCIt definition : The hydrochloride salt form of pirarubicin, an analogue of the anthracycline antineoplastic
antibiotic doxorubicin with antineoplastic activity. Pirarubicin intercalates into
DNA and interacts with topoisomerase II, thereby inhibiting DNA replication and repair
as well as RNA and protein synthesis. This agent is less cardiotoxic than doxorubicin
and exhibits activity against some doxorubicin-resistant cell lines.;