<unk>  is an alkylating agent that is FDA approved for the treatment of Stage III and IV Hodgkin's disease used as part of the MOPP (nitrogen mustard, vincristine,<unk> , prednisone) regimen. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include nausea, vomiting, hemolysis, myelosuppression, neurotoxicity, peripheral neuropathy.
Procarbazine
Dacarbazine
Decarbofuran
Mercaptopurine
Dioxacarb
Mafosfamide
Busulfan 
Oxydisulfoton