| Fluoropyrimidines | 5-Fluorouracil (Adrucil) Capecitabine (Xeloda PO) Floxuridine HAI Trifluridine + Tipiracil (Lonsurf) |
| Cytidine Analogs (C) | Azacitidine (Vidaza) Cytarabine (Conventional, Cytosar-U; Liposomal+Daunorubicin, Vyxeos) Decitabine (Dacogen) Gemcitabine (Gemzar) |
| Purines and Purine Antimetabolites | Cladribine (Leustatin) Clofarabine (Clolar) Fludarabine (Fludara) Mercaptopurine (6-MP, Purinethol, Purixan PO) Nelarabine (Arranon) Pentostatin (Nipent) Thioguanine (6-TG, Tabloid) |
| Antifolates | Methotrexate (Trexall, Rheumatrex, Otrexup, Rasuvo) PEMEtrexed (Alimta) PRALAtrexate (Folotyn) Raltitrexed (Tomudex) |
| Ribonucleoside diphosphate reductase inhibitors | Hydroxyurea (Droxia; Hydrea; Siklos) |