Complex sentence: Temozolomide (brand names Temodar and Temodal and Temcad) is an oral alkylating agent used for the treatment of Grade IV astrocytoma--an aggressive brain tumor, also known as glioblastoma multiforme--as well as for treating melanoma, a form of skin cancer.
Split into simpler sentences: Temozolomide (brand names Temodar and Temodal and Temcad) is an oral chemotherapy drug. It is an alkylating agent used for the treatment of Grade IV astrocytoma--an aggressive brain tumor, also known as glioblastoma multiforme--as well as for treating melanoma, a form of skin cancer.