5 - 11 days
Test Updated:
Purinethol
Thiopurines
Imuran
Azathiopurine
6 Mercaptopurine (6 MP)
Mercaptopurine (6-MP) Level
MERCAP
6MP
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Test Overview
High Performance Liquid Chromatography (HPLC)
Therapeutic drug monitoring of Mercaptopurine (6-MP) (Purinethol) or Azathioprine (Imuran) (measured as 6-Mercaptopurine).
Therapeutic and toxic ranges have not been established. Usual therapeutic doses of either mercaptopurine or azathioprine produce 6-mercaptopurine serum concentrations of less than 1000 ng/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.