Reported Reactions

Drugs › Janus kinase inhibitor

Generic name

Upadacitinib: adverse event reports filed with FDA

4,195 reports list it as a suspect or interacting product, 2019–2026. Class: Janus kinase inhibitor.

4,195
reports as suspect product
0% of all reports · about 599 a year
1,276
reports, 12 months to June 2026
1,261 in the 12 months before
68.9%
marked serious by the reporter
53.1% across the class
3.2%
record death among outcomes, as reported
133 reports · not verified by FDA

4,195 adverse event reports received by FDA list upadacitinib, a generic name as a suspect or interacting product, from July 2019 to June 2026. A further 442 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 1,276 reports listed it, close to the 1,261 of the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 599 reports a year and 0% of the 20,646,523 reports in the database, and 1.3% of the reports for the janus kinase inhibitor class. How many people take it is not in the data, so a count is not a rate of occurrence.

The reactions recorded most often are drug ineffective (9.3%), off label use (8.1%) and pneumonia (2.7%). A report can list several reactions, so shares add to more than 100%; 940 different terms appear across these reports. Drug ineffective is recorded in 9.3% of these reports, about the same share as in the median janus kinase inhibitor drug (9.3%).

68.9% of the reports are marked serious by the reporter (53.1% across the class); 3.2% record death among the outcomes and 32.3% record hospitalisation, as reported. 50.4% of the reports came from physicians, and the largest patient age group is 45 to 64 (21.6%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

068136Jul 2021: 13Aug 2021: 10Sep 2021: 12Oct 2021: 14Nov 2021: 18Dec 2021: 212022Jan 2022: 21Feb 2022: 30Mar 2022: 26Apr 2022: 26May 2022: 32Jun 2022: 16Jul 2022: 33Aug 2022: 32Sep 2022: 41Oct 2022: 31Nov 2022: 43Dec 2022: 412023Jan 2023: 22Feb 2023: 63Mar 2023: 51Apr 2023: 49May 2023: 82Jun 2023: 54Jul 2023: 37Aug 2023: 49Sep 2023: 53Oct 2023: 44Nov 2023: 49Dec 2023: 362024Jan 2024: 61Feb 2024: 53Mar 2024: 72Apr 2024: 88May 2024: 60Jun 2024: 58Jul 2024: 93Aug 2024: 98Sep 2024: 91Oct 2024: 116Nov 2024: 111Dec 2024: 1052025Jan 2025: 95Feb 2025: 106Mar 2025: 116Apr 2025: 122May 2025: 110Jun 2025: 98Jul 2025: 108Aug 2025: 136Sep 2025: 110Oct 2025: 117Nov 2025: 96Dec 2025: 902026Jan 2026: 93Feb 2026: 101Mar 2026: 104Apr 2026: 105May 2026: 104Jun 2026: 112

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

06521,3042019: 5220192020: 8120202021: 17220212022: 37220222023: 58920232024: 1,00620242025: 1,30420252026: 6192026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Upadacitinib reports recording the termmedian drug in janus kinase inhibitor

  1. Drug ineffectivethe medicine did not work as expected9.3%392
  2. Off label useused for a purpose or in a way not on the label8.1%340
  3. Pneumonialung infection2.7%112
  4. Arthralgiajoint pain2.5%103
  5. Diarrhoealoose or frequent stools2.4%101
  6. Herpes zostershingles2.4%99
  7. Acneacne2.3%96
  8. Abdominal painstomach or belly pain2.1%89
  9. Fatiguetiredness2.1%88
  10. Painpain, site not specified2.1%88
  11. Rashskin rash2%82
  12. Covid-19COVID-19 infection1.9%80
  13. Headachehead pain1.9%80
  14. Rheumatoid arthritisrheumatoid arthritis, an inflammatory joint disease1.9%80
  15. Condition aggravatedthe condition being treated got worse1.8%74
  16. Pyrexiafever1.7%72
  17. Pain in extremitypain in an arm or leg1.5%64
  18. Arthritis1.5%62
  19. Weight increasedweight gain1.5%62
  20. Nauseafeeling sick1.5%61
  21. Treatment failurethe treatment did not work1.5%61
  22. Colitisinflamed bowel1.4%58
  23. Dizzinesslight-headedness or unsteadiness1.4%58
  24. Dyspnoeashortness of breath1.4%58
  25. Malaisegeneral feeling of being unwell1.3%54

Top 30 of 940 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the median share across the 11 drugs in the janus kinase inhibitor class; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death3.2%133
Life-threatening3.6%150
Hospitalisation (initial or prolonged)32.3%1,354
Disability2.3%95
Congenital anomaly0.1%5
Other serious44.8%1,881
Not serious31.1%1,306

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 323,323 reports in the class. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20%0
2 to 110.4%16
12 to 172.4%100
18 to 4418.7%785
45 to 6421.6%906
65 to 749.3%392
75 and over4.1%171
Age not given43.5%1,825

Patient sex

Female44.6%1,869
Male29.6%1,240
Not given25.9%1,086

Who reported

Physician50.4%2,114
Pharmacist2.4%102
Other health professional26.4%1,106
Lawyer0%0
Consumer or non-health professional20.7%870
Not given0.1%3

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 40.8% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Rheumatoid arthritis1,02324.4%
Crohn's disease72517.3%
Dermatitis atopic60614.4%
Colitis ulcerative59514.2%
Psoriatic arthropathy1383.3%
Ankylosing spondylitis531.3%

The indication field is filled in by the reporter and is often blank; shares are of all 4,195 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Upadacitinib reports
Methotrexate59914.3%
Adalimumab3538.4%
Prednisone3267.8%
Folic acid2746.5%
Prednisolone1974.7%
Infliximab1874.5%
Ustekinumab1583.8%
Vedolizumab1393.3%
Azathioprine1263%
Acetaminophen1243%

Other products listed in reports where Upadacitinib is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureUpadacitinibJanus kinase inhibitorAll reports
Reports as suspect product4,195323,32320,646,523
Share of that pool—1.3%0%
Reports, latest 12 months1,276—1,332,454
Marked serious68.9%53.1%57.4%
Death recorded among outcomes, per 1,000 reports327591
Hospitalisation recorded, per 1,000 reports323190213
Consumer-filed share20.7%52.1%45.8%
Top term, share of reportsDrug ineffective 9.3%median 9.3%6.3%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Other drugs in the janus kinase inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Xeljanzbrand156,0823,57144.2%
Rinvoqbrand73,18714,08569%
Jakafibrand55,3914,58442.3%
Ruxolitinibgeneric8,8151,36198%
Olumiantbrand6,20539657.9%
Tofacitinib citrategeneric5,77562896.6%
Tofacitinibgeneric4,87486094.6%
Opzelurabrand3,2856608%
Cibinqobrand3,14950331.5%
Baricitinibgeneric2,36521892.9%

Ordered by report count for navigation only. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic." A brand and its generic are separate rows because reporters name them separately.

Questions about Upadacitinib reports

How many adverse event reports has FDA received for Upadacitinib?

4,195 reports list Upadacitinib as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 1,276 of them arrived in the latest 12 months. Another 442 list it only as a concomitant medication.

What reactions are recorded in Upadacitinib reports?

drug ineffective (9.3%), off label use (8.1%), pneumonia (2.7%), crohn's disease (2.6%) and arthralgia (2.5%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Upadacitinib was responsible.

How serious are the reports?

68.9% are marked serious by the reporter. Among the outcomes recorded, 3.2% of reports include death and 32.3% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

physician (50.4%), other health professional (26.4%) and consumer or non-health professional (20.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Upadacitinib rising?

1,276 reports in the 12 months to June 2026, close to the 1,261 of the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Upadacitinib was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Upadacitinib?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Upadacitinib as a suspect or interacting product; reports listing it only as a concomitant medication (442) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.