Xeljanz (tofacitinib) is a Janus kinase (JAK) inhibitor available in 5 mg immediate-release tablets and 11 mg and 22 mg extended-release tablets.
Xeljanz (tofacitinib) is a Janus kinase (JAK) inhibitor available in 5 mg immediate-release tablets and 11 mg and 22 mg extended-release tablets.