<unk> (implant) is an alkylationg agent that is FDA approved for the treatment of high-grade malignant glioma, glioblastoma multiforme.   Common adverse reactions include headache, nausea and vomiting.
Carmustine 
Bendamustine
Lomustine
Fotemustine
Estramustine
Prednimustine
Semustine
Mafosfamide