僅用于工業應用或科學研究，不可用于人類或動物的臨床診斷或治療，非藥用.Favipiravir （T-705） is a potent viral RNA polymerase inhibitor, it is phosphoribosylated by cellular enzymes to its active form, Favipiravir-ribofuranosyl-5′-triphosphate （RTP）. Favipiravir-RTP inhibits the influenza viral RNA-dependent RNA polymerase （RdRP） activity with an IC50 of 341 nM.