postmenopausal women who underwent modified radical mastectomy for stage ii , estrogen receptor ( er ) -positive breast cancer were randomized to receive endocrine treatment ( tamoxifen [ t ] , 40 mg daily for 3 years ) alone versus endocrine treatment plus five-drug chemotherapy ( cytoxan [ cyclophosphamide , c ] , methotrexate [ m ] , 5-fluorouracil [ f ] , vincristine [ v ] , and prednisone [ p ] , cmfvp , for 1 year ) .
C0016360
5-fluorouracil
C0055987
cmfvp