Home Page | XELJANZ® (tofacitinib) | Safety Info How XELJANZ Works XELJANZ is a Janus kinase (JAK) inhibitor that helps regulate an overactive immune system It helps disrupt JAK pathways from inside the cells, which are believed to play a role in inflammation
Home Page | XELJANZ® (tofacitinib) For PsA | Safety Info How XELJANZ Works XELJANZ is a Janus kinase (JAK) inhibitor that helps regulate an overactive immune system It helps disrupt JAK pathways from inside the cells, which are believed to play a role in inflammation
Sign Up For Support | XELJANZ® (tofacitinib) | Safety Info Whether you and your doctor are considering XELJANZ to treat your condition, or you’ve recently been prescribed XELJANZ, sign up below to receive information about XELJANZ, lifestyle tips, and tools for the different stages of your treatment journey