Dasatinib Clonmel is used to treat Philadelphia chromosome positive (Ph+) acute lymphoblastic leukaemia (ALL) in adults who are not benefiting from prior therapies, adolescents and children at least 1 year of age. Leukaemia is a cancer of white blood cells. These white cells usually help the body to fight infection. In people with ALL, white cells called lymphocytes multiply too quickly and live too long. Dasatinib Clonmel inhibits the growth of these leukaemic cells.