Temozolomide Clonmel is used for the treatment of specific forms of brain tumours: - in adults with newly-diagnosed glioblastoma multiforme. Temozolomide Clonmel is first used together with radiotherapy (concomitant phase of treatment) and after that alone (monotherapy phase of treatment). - in children 3 years and older and adult patients with malignant glioma, such as glioblastoma multiforme or anaplastic astrocytoma. Temozolomide Clonmel is used in these tumours if they return or get worse after standard treatment.