Overview All are S-phase specific Methotrexate 5FU and MTX mechanisms of action Mechanism login to view 4 more bullets Clinical use login to view 11 more bullets Toxicity login to view 10 more bullets 5-Fluorouracil (5-FU) Mechanism login to view 6 more bullets Clinical use login to view 5 more bullets Toxicity login to view 4 more bullets 6-Mercaptopurine (6-MP) Mechanism login to view 3 more bullets Clinical use login to view 6 more bullets Toxicity login to view 5 more bullets 6-Thioguanine (6-TG) Mechanism login to view 1 more bullet Clinical use login to view 2 more bullets Toxicity login to view 2 more bullets Cytarabine (ara-C) Mechanism login to view 2 more bullets Clinical use login to view 4 more bullets Toxicity login to view 3 more bullets