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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

Janus Kinase Inhibitor [EPC] — Common Side Effects

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Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Drug ineffective 36,486 5 1,697 5,347 1,908
Pain 28,105 5 1,900 6,011 2,158
Off label use 26,140 5 3,385 5,384 2,308
Fatigue 21,585 5 2,025 5,187 2,160
Arthralgia 20,862 5 1,624 4,661 1,837
Condition aggravated 18,910 5 1,659 4,216 1,813
Rheumatoid arthritis 15,330 4 1,775 3,982 2,109
Headache 15,207 5 1,496 3,276 1,610
Pain in extremity 12,344 5 1,099 2,872 1,033
Joint swelling 12,136 5 1,802 3,271 2,117
Malaise 12,107 5 1,589 3,660 1,462
Diarrhoea 11,966 5 1,605 3,656 1,669
Nausea 11,424 5 1,276 3,207 1,492
Death 11,368 5 11,260 1,154 91
Rash 11,310 5 1,784 3,441 2,085
Peripheral swelling 10,195 5 1,420 3,002 1,458
Nasopharyngitis 10,011 5 1,419 2,525 1,495
Pneumonia 9,425 5 2,000 5,650 1,287
Abdominal discomfort 9,344 5 1,517 2,743 1,829
Covid-19 9,292 5 517 2,631 108
Musculoskeletal stiffness 8,800 4 1,298 2,291 1,582
Dyspnoea 8,721 5 1,438 3,654 1,374
Swelling 8,546 5 1,665 2,785 1,987
Alopecia 8,543 5 1,475 2,553 1,879
Infection 8,424 5 1,487 3,297 1,316
Weight increased 8,249 5 1,596 2,547 1,686
Arthropathy 7,990 4 1,462 3,075 1,904
Drug intolerance 7,988 5 1,306 2,317 1,681
Product dose omission issue 7,924 5 77 827 20
Pyrexia 7,888 5 1,503 4,072 1,507
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