Patients treated with temozolomide capsules may experience myelosuppression. Prior to dosing, patients must have an absolute neutrophil count (ANC) ≥ 1.5 x 109/L and a platelet count ≥ 100 x 109/L. A complete blood count should be obtained on Day 22 (21 days after the first dose) or within 48 hours of that day, and weekly until the ANC is above 1.5 x 109/L and platelet count exceeds 100 x109/L.