cyclophosphamide + diethylstilbestrol + epirubicin + fluorouracil

This is a combination chemotherapy regimen consisting of four agents: cyclophosphamide (an alkylating agent), diethylstilbestrol (a synthetic estrogen), epirubicin (an anthracycline), and fluorouracil (an antimetabolite). The combination is likely used in cancer treatment, particularly for hormone-responsive cancers. Cyclophosphamide works by damaging DNA in cancer cells, preventing them from dividing. Diethylstilbestrol is a synthetic estrogen that may be used in hormone therapy for certain cancers. Epirubicin damages the structure supporting cancer cells, stopping their growth and division. Fluorouracil is an antimetabolite that prevents DNA replication, stopping cancer cells from multiplying.