Xeljanz (tofacitinib) is a prescription JAK inhibitor used to treat moderate to severe rheumatoid arthritis, active psoriatic arthritis, and ulcerative colitis in adults who have not responded adequately to previous treatments. This oral medication works by blocking specific enzymes that contribute to inflammation and immune system overactivity. For patients seeking affordable inflammatory disease medications, working with licensed pharmacies ensures safe access to authentic treatments while maintaining proper monitoring protocols.
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