xeljanz can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections, lymphoma and other cancers have happened. don't start xeljanz if you have an infection. tears in the stomach or intestines, low blood cell counts and higher liver tests and cholesterol levels have happened. your doctor should perform blood tests before you start and while taking xeljanz, and monitor certain liver tests. tell your doctor if you were in a region where fungal infections are common and if you have had tb, hepatitis b or c, or are prone to infections. xeljanz can reduce the symptoms of ra, even without methotrexate, and is also available in a once-daily pill. ask about xeljanz xr. [ "livin' thing" by electric light orchestra ] ♪ sailin' away on the crest of a wave, it's like magic ♪ ♪ rollin' and ridin' and slippin' and slidin' ♪