GSK Purinethol Labeling Should Mention Tests For TPMT Enzyme Activity

GlaxoSmithKline's Purinethol (6-mercaptopurine) labeling should mention the availability of tests for TPMT enzyme deficiency but should not specify how and when they should be used, FDA's Pediatric Oncology Subcommittee of the Oncologic Drugs Advisory Committee said at its July 15 meeting