Bosutinib, sold under the brand name Bosulif, is a small molecule BCR-ABL and src tyrosine kinase inhibitor used for the treatment of chronic myelogenous leukemia.[citation needed] It is an ATP-competitive Bcr-Abl tyrosine-kinase inhibitor with an additional inhibitory effect on Src family kinases (including Src, Lyn and Hck).Bosutinib received US FDA and EU European Medicines Agency approval in September 2012, and March 2013, respectively for the treatment of adults with Philadelphia chromosome-positive (Ph+) chronic myelogenous leukemia (CML) with resistance, or intolerance to prior therapy.[3] Hence P-gp and CYP3A4 inhibitors may increase plasma levels of bosutinib.[3] Likewise CYP3A4 inducers may reduce plasma concentrations of bosutinib.