<p>Mercaptopurine is indicated for&nbsp;maintenance therapy&nbsp;of acute lymphatic (lymphocytic, lymphoblastic)&nbsp;leukemiaas part of a combination&nbsp;regimen. The response to this agent depends upon the particular subclassification of acute lymphatic leukemia and the age of the patient (pediatric or adult).<br />
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Mercaptopurine is not effective for&nbsp;prophylaxis&nbsp;or treatment of&nbsp;central nervous system&nbsp;leukemia. Mercaptopurine is not effective in&nbsp;acute myelogenous leukemia, chronic lymphatic leukemia, the lymphomas (including Hodgkins Disease), or solid tumors.</p>