Reported Reactions

Drugs › Interleukin-17A antagonist

Generic name

Ixekizumab: adverse event reports filed with FDA

1,052 reports list it as a suspect or interacting product, 2016–2026. Class: Interleukin-17A antagonist. Also reported as Ixekizumab 80mg.

1,052
reports as suspect product
0% of all reports · about 104 a year
166
reports, 12 months to June 2026
140 in the 12 months before
83.7%
marked serious by the reporter
36% across the class
2.7%
record death among outcomes, as reported
28 reports · not verified by FDA

1,052 adverse event reports received by FDA list ixekizumab, a generic name as a suspect or interacting product, from May 2016 to June 2026. A further 318 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, 166 reports listed it, up 19% from 140 in 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 104 reports a year and 0% of the 20,646,523 reports in the database, and 0.6% of the reports for the interleukin-17A antagonist class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded drug ineffective (18.5%), psoriasis (10.8%) and off label use (10.3%). A report can list several reactions, so shares add to more than 100%; 351 different terms appear across these reports. Drug ineffective is recorded in 18.5% of these reports, about the same share as in the median interleukin-17A antagonist drug (18.3%).

83.7% of the reports are marked serious by the reporter (36% across the class); 2.7% record death among the outcomes and 30% record hospitalisation, as reported. 42.7% of the reports came from consumers, and the largest patient age group is 45 to 64 (33.6%). 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

01224Jul 2021: 10Aug 2021: 11Sep 2021: 5Oct 2021: 7Nov 2021: 17Dec 2021: 112022Jan 2022: 11Feb 2022: 6Mar 2022: 13Apr 2022: 10May 2022: 18Jun 2022: 8Jul 2022: 10Aug 2022: 7Sep 2022: 10Oct 2022: 18Nov 2022: 13Dec 2022: 72023Jan 2023: 5Feb 2023: 2Mar 2023: 9Apr 2023: 5May 2023: 10Jun 2023: 6Jul 2023: 12Aug 2023: 16Sep 2023: 10Oct 2023: 12Nov 2023: 8Dec 2023: 72024Jan 2024: 8Feb 2024: 16Mar 2024: 13Apr 2024: 16May 2024: 17Jun 2024: 16Jul 2024: 11Aug 2024: 17Sep 2024: 8Oct 2024: 18Nov 2024: 9Dec 2024: 82025Jan 2025: 4Feb 2025: 19Mar 2025: 12Apr 2025: 11May 2025: 12Jun 2025: 11Jul 2025: 10Aug 2025: 20Sep 2025: 13Oct 2025: 15Nov 2025: 13Dec 2025: 172026Jan 2026: 3Feb 2026: 4Mar 2026: 18Apr 2026: 10May 2026: 24Jun 2026: 19

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

0791572016: 1920162017: 612018: 4720182019: 712020: 11320202021: 1162022: 13120222023: 1022024: 15720242025: 1572026: 782026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Ixekizumab reports recording the termmedian drug in interleukin-17a antagonist

  1. Drug ineffectivethe medicine did not work as expected18.5%195
  2. Psoriasispsoriasis, a skin condition10.8%114
  3. Off label useused for a purpose or in a way not on the label10.3%108
  4. Arthralgiajoint pain6.8%72
  5. Treatment failurethe treatment did not work6.8%72
  6. Nauseafeeling sick6.7%70
  7. Painpain, site not specified5.9%62
  8. Injection site painpain where the injection was given4.9%52
  9. Condition aggravatedthe condition being treated got worse4.8%51
  10. Cellulitisa skin infection4.8%50
  11. Pneumonialung infection4.3%45
  12. Headachehead pain4.1%43
  13. Fatiguetiredness4%42
  14. Drug intolerancethe medicine was not tolerated3.9%41
  15. Pruritusitching3.9%41
  16. Therapy non-responderthe treatment did not work3.8%40
  17. Deafnesshearing loss3.5%37
  18. Cardiac failure congestivecongestive heart failure3.4%36
  19. Rheumatoid arthritisrheumatoid arthritis, an inflammatory joint disease3.4%36
  20. Musculoskeletal stiffnessstiffness in muscles or joints3.3%35
  21. Drug hypersensitivityan allergic-type reaction to a medicine3.1%33
  22. Inflammationinflammation3.1%33
  23. Erythemaskin redness3%32
  24. Hypertensionhigh blood pressure3%32

Top 30 of 351 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 4 drugs in the interleukin-17a antagonist 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

Death2.7%28
Life-threatening4.7%49
Hospitalisation (initial or prolonged)30%316
Disability2.5%26
Congenital anomaly1.4%15
Other serious64.4%677
Not serious16.3%171

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 190,442 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 20.1%1
2 to 110.9%9
12 to 170.9%9
18 to 4418.1%190
45 to 6433.6%353
65 to 7410.6%111
75 and over3.4%36
Age not given32.6%343

Patient sex

Female46.4%488
Male42%442
Not given11.6%122

Who reported

Physician22.4%236
Pharmacist1.7%18
Other health professional33%347
Lawyer0%0
Consumer or non-health professional42.7%449
Not given0.2%2

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 31% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Psoriasis46143.8%
Psoriatic arthropathy14814.1%
Alopecia scarring90.9%
Ankylosing spondylitis90.9%
Erythrodermic psoriasis50.5%
Pustular psoriasis40.4%

The indication field is filled in by the reporter and is often blank; shares are of all 1,052 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Ixekizumab reports
Methotrexate24223%
Adalimumab15714.9%
Cosentyx14413.7%
Secukinumab13813.1%
Prednisone13212.5%
Humira11110.6%
Enbrel10710.2%
Infliximab1049.9%
Etanercept959%
Ustekinumab858.1%

Other products listed in reports where Ixekizumab 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

MeasureIxekizumabInterleukin-17A antagonistAll reports
Reports as suspect product1,052190,44220,646,523
Share of that pool—0.6%0%
Reports, latest 12 months166—1,332,454
Marked serious83.7%36%57.4%
Death recorded among outcomes, per 1,000 reports274691
Hospitalisation recorded, per 1,000 reports300124213
Consumer-filed share42.7%57.4%45.8%
Top term, share of reportsDrug ineffective 18.5%median 18.3%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 interleukin-17a antagonist class

DrugName typeReportsLatest 12 monthsMarked serious
Cosentyxbrand151,2955,95238%
Taltzbrand33,8891,85117.9%
Secukinumabgeneric4,20655896.6%

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 Ixekizumab reports

How many adverse event reports has FDA received for Ixekizumab?

1,052 reports list Ixekizumab as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 166 of them arrived in the latest 12 months. Another 318 list it only as a concomitant medication.

What reactions are recorded in Ixekizumab reports?

drug ineffective (18.5%), psoriasis (10.8%), off label use (10.3%), arthralgia (6.8%) and treatment failure (6.8%). 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 Ixekizumab was responsible.

How serious are the reports?

83.7% are marked serious by the reporter. Among the outcomes recorded, 2.7% of reports include death and 30% 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?

consumer or non-health professional (42.7%), other health professional (33%) and physician (22.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Ixekizumab rising?

166 reports in the 12 months to June 2026, up 19% from 140 in 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 Ixekizumab 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 Ixekizumab?

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 Ixekizumab as a suspect or interacting product; reports listing it only as a concomitant medication (318) 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.