A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid.

Synonyms: Fluorouracil Potassium Salt Fluoro-Uracile ICN Fluorouracil Monopotassium Salt 5-Fluorouracil 5FU 5 FU Medac 5-Fluorouracil-Biosyn 57050-04-1 5-FU Lederle Fluorouracilo Ferrer Far Carac 57172-36-8 Ribofluor Efudex 5-FU Medac Fluorouracil Monosodium Salt 68021-61-4 Adrucil U3P01618RT 5 HU Hexal Dakota, Fluorouracile Haemato FU Fluracedyl Onkofluor Fluorouracile Dakota Fluoruracil Fluorouracil-GRY 5 Fluorouracil Biosyn Fluorouracil Flurodex 5 Fluorouracil 10318-20-4 Fluoroplex 5-HU Hexal Fluorouracil Mononitrate Efudix Haemato-FU 0 Neofluor Fluorouracil GRY Fluoro Uracile ICN 2,4(1H,3H)-Pyrimidinedione, 5-fluoro- 5 FU Lederle 5-FU