(... REH-jih-men) 
An abbreviation for a chemotherapy combination used to treat certain types of non-Hodgkin lymphoma. It includes the drugs rituximab, etoposide phosphate, prednisone, vincristine sulfate (Oncovin), cyclophosphamide, and doxorubicin hydrochloride (hydroxydaunorubicin). Also called EPOCH-R, R-EPOCH, and R-EPOCH regimen.