Medical Dictionary


noun to·fa·ci·ti·nib \ˌtō-fə-ˈsi-tə-ˌnib\

Medical Definition of tofacitinib

  1. :  a drug that inhibits enzymes involved in mediating inflammatory immune responses and is taken orally in the form of its citrate C16H20N6O·C6H8O7 especially to treat rheumatoid arthritis Tofacitinib is marketed under the trademark Xeljanz.

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