has role has functional parent independent continuant antifibrotic agent carbonic acid antimetabolite antineoplastic agent antihypertensive agent immunosuppressive agent organooxygen compound hydroxyurea A member of the class of ureas that is urea in which one of the hydrogens is replaced by a hydroxy group. An antineoplastic used in the treatment of chronic myeloid leukaemia as well as for sickle-cell disease. CHEBI:44423 N-HYDROXYUREA ureas radical scavenger genotoxin teratogenic agent DNA synthesis inhibitor one-carbon compound antimitotic anti-HIV agent EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor anti-anaemic agent