The successful use of ondansetron in a boy with both leukemia and Tourette syndrome.

This article reports an 8-year-old boy with both acute lymphoblastic leukemia and Gilles de la Tourette syndrome. Initially, for his leukemia, he was treated with chemotherapy, which resulted in severe nausea and vomiting for which he was given ondansetron. This not only relieved the target symptoms, but also those of his Gilles de la Tourette syndrome. Following a reduction of the ondansetron dosage, his Gilles de la Tourette syndrome symptoms reemerged.