The condition and the treatment
Malignant gliomas are the most common type of brain tumour. They are usually treated with surgery and radiotherapy, and sometimes chemotherapy as well.
Temozolomide (Temodal) is a chemotherapy treatment which is given as a tablet once a day for 5 days out of 28. It is toxic to cancer cells because it crosses from the blood supply into the brain.
NHS Choices may be a good place to find out more.