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Mercaptopurine is a type of chemotherapy. It works by slowing or stopping the growth of cells. It is used in combination with other medicines.
Patients may differ in how slowly or quickly their body breaks down mercaptopurine due to the function of certain enzymes. A genetic test may be performed to see how well a patient’s enzymes function. Patients who break down mercaptopurine more slowly may receive a lower dose of the medicine. Read more: Thiopurine methyltransferase (TPMT) and medicines
Patients will have regular blood draws to check blood counts and monitor liver function. Blood levels of mercaptopurine may be monitored to see whether the dose should be changed.
May be taken as a liquid by mouth
May be taken as a tablet by mouth
Not all patients who take mercaptopurine will experience these side effects. Common side effects are in bold, but there may be others. Please report all suspected side effects to your doctor or pharmacist.
Be sure to discuss these and other recommendations with your doctor or pharmacist.