- A drug used alone or with other drugs to treat certain types of brain tumors, Hodgkin lymphoma, and non-Hodgkin lymphoma and with prednisone to treat multiple myeloma. It is also being studied in the treatment of other types of cancer. Carmustine damages the cell's DNA and may kill cancer cells. It is a type of alkylating agent and a type of nitrosourea. Also called BCNU and BiCNU.