Synonyms: 6-Fluoro-3-hydroxy-2-pyrazinecarboxamide, Favipiravir, T 705,2-Pyrazinecarboxamide, 6-fluoro-3,4-dihydro-3-oxo-, Pyrazinecarboxamide, 6-fluoro-3,4-dihydro-3-oxo- (9CI), 6-Fluoro-3,4-dihydro-3-oxo-2-pyrazinecarboxamide, Avigan, T 705 (pharmaceutical)