Xeljanz is a medicine used to treat inflammation. It is mainly prescribed for rheumatoid arthritis, psoriatic arthritis, and ulcerative colitis. The dosage strength in which this medicine comes is 5mg.The dosage and treatment plan should be decided by the doctor. Common side effects of this medicine are infections, gastro problems, increase cholesterol levels, blood disorders etc. Xeljanz 5 mg price is also affordable and pocket friendly.