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What is XELJANZ/XELJANZ XR?

XELJANZ/XELJANZ XR can lower the ability of your immune system to fight infections. Some people can have serious infections while taking XELJANZ/XELJANZ XR, including tuberculosis (TB), and infections caused by bacteria, fungi, or viruses that can spread throughout the body. Some people have died from these infections.

  • Your healthcare provider should test you for TB before starting and during XELJANZ/XELJANZ XR treatment, and monitor you closely for signs and symptoms of TB infection during treatment.

You should not start taking XELJANZ/XELJANZ XR if you have any kind of infection unless your healthcare provider tells you it is okay. You may be at a higher risk of developing shingles (herpes zoster). People taking the higher dose (10 mg twice daily) of XELJANZ have a higher risk of serious infections and shingles.

Safety Questions: 
What should I know before starting on XELJANZ/XELJANZ XR?
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