Common Side Effects and Their Duration
Xeljanz (tofacitinib), used for rheumatoid arthritis, psoriatic arthritis, ulcerative colitis, and other conditions, causes side effects that vary by type and individual. Most acute side effects like nausea, headache, diarrhea, or upper respiratory infections start within days to weeks of beginning treatment and resolve within days to weeks after stopping the drug.[1][2] For example, gastrointestinal issues often improve as the body adjusts, typically within 1-4 weeks of continued use, or faster upon discontinuation.[3]
Serious Side Effects and Long-Term Risks
Serious effects, such as infections (e.g., shingles, pneumonia), blood clots, or malignancies, can emerge after months or years of use due to Xeljanz's immune-suppressing action. These may persist or require prolonged recovery—hospitalization for infections can take weeks, while clot-related damage might last months.[1][4] Black box warnings highlight risks of serious infections, mortality, heart events, cancer, and thrombosis, with incidence rising after 3+ years in studies.[2] Post-marketing data shows some patients experience lingering effects like neuropathy or organ damage beyond discontinuation.[5]
Factors Affecting How Long Side Effects Last
Duration depends on dosage (5mg vs. 10mg twice daily), treatment length, patient age, comorbidities (e.g., diabetes increases infection risk), and concurrent medications. Older adults (65+) face higher prolonged risks.[1][3] Switching to topical or lower-dose forms may shorten effects, but systemic exposure means some risks linger for months post-stop.[4]
What Happens After Stopping Xeljanz
Effects from short-term use usually fade within 1-2 weeks, as the drug's half-life is about 3 hours.[6] Chronic issues like immunosuppression can take 4-8 weeks to normalize, per clinical trials.[2][7] Always taper under medical supervision to avoid flare-ups of underlying disease.
Patient Experiences and Management
Real-world reports on forums note headaches resolving in 3-7 days, but fatigue or joint pain persisting 2-4 weeks after stopping. Doctors recommend monitoring via blood tests; probiotics or antivirals help manage some effects.[5] Consult a provider for personalized timelines, as individual responses differ.
[1]: Xeljanz Prescribing Information (Pfizer)
[2]: FDA Xeljanz Label and Safety Updates
[3]: Drugs.com Xeljanz Side Effects
[4]: Mayo Clinic Xeljanz Overview
[5]: WebMD User Reviews
[6]: RxList Xeljanz Pharmacology
[7]: ClinicalTrials.gov Tofacitinib Studies (NCT00900441)