Reported Reactions

Drugs › Radiographic contrast agent

Brand name · Iomeprol injection

Iomeron: adverse event reports filed with FDA

1,257 reports list it as a suspect or interacting product, 2009–2026. Class: Radiographic contrast agent.

1,257
reports as suspect product
0% of all reports · about 74 a year
301
reports, 12 months to June 2026
200 in the 12 months before
99.8%
marked serious by the reporter
77% across the class
8.4%
record death among outcomes, as reported
106 reports · not verified by FDA

1,257 adverse event reports received by FDA list the brand name Iomeron (iomeprol injection) as a suspect or interacting product, from July 2009 to June 2026. A further 73 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, 301 reports listed it, up 51% from 200 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 74 reports a year and 0% of the 20,646,523 reports in the database, and 4.7% of the reports for the radiographic contrast agent class. How many people take it is not in the data, so a count is not a rate of occurrence.

The MedDRA terms listed most often are rash maculo-papular (16.4%), drug reaction with eosinophilia and systemic symptoms (13%) and acute kidney injury (10.5%). A report can list several reactions, so shares add to more than 100%; 232 different terms appear across these reports. Rash maculo-papular is recorded in 16.4% of these reports, a larger share than in the median radiographic contrast agent drug (1.6%).

99.8% of the reports are marked serious by the reporter (77% across the class); 8.4% record death among the outcomes and 61.8% record hospitalisation, as reported. 58.7% of the reports came from physicians, and the largest patient age group is 45 to 64 (36.1%). 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

02040Jul 2021: 2Aug 2021: 3Sep 2021: 4Oct 2021: 9Nov 2021: 4Dec 2021: 132022Jan 2022: 4Feb 2022: 13Mar 2022: 18Apr 2022: 3May 2022: 11Jun 2022: 4Jul 2022: 5Aug 2022: 14Sep 2022: 6Oct 2022: 17Nov 2022: 11Dec 2022: 82023Jan 2023: 13Feb 2023: 7Mar 2023: 13Apr 2023: 12May 2023: 9Jun 2023: 3Jul 2023: 15Aug 2023: 19Sep 2023: 12Oct 2023: 9Nov 2023: 8Dec 2023: 152024Jan 2024: 12Feb 2024: 8Mar 2024: 14Apr 2024: 7May 2024: 11Jun 2024: 6Jul 2024: 9Aug 2024: 4Sep 2024: 10Oct 2024: 7Nov 2024: 5Dec 2024: 242025Jan 2025: 20Feb 2025: 24Mar 2025: 23Apr 2025: 36May 2025: 20Jun 2025: 18Jul 2025: 24Aug 2025: 14Sep 2025: 40Oct 2025: 30Nov 2025: 28Dec 2025: 182026Jan 2026: 27Feb 2026: 16Mar 2026: 24Apr 2026: 25May 2026: 20Jun 2026: 35

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

01482952009: 220092011: 12012: 520122013: 232014: 1820142015: 212016: 1920162017: 212018: 6520182019: 972020: 9920202021: 782022: 11420222023: 1352024: 11720242025: 2952026: 1472026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Iomeron reports recording the termmedian drug in radiographic contrast agent

  1. Rash maculo-papulara rash of flat and raised spots16.4%206
  2. Drug reaction with eosinophilia and systemic symptomsDRESS, a severe reaction with rash, fever and organ involvement13%163
  3. Acute kidney injurysudden loss of kidney function10.5%132
  4. Pruritusitching5.9%74
  5. Erythemaskin redness4.1%52
  6. Pyrexiafever3.8%48
  7. Rashskin rash3.3%42
  8. Anaphylactic shocka severe allergic reaction with collapse3%38
  9. Hypotensionlow blood pressure2.6%33
  10. Urticariahives2.5%32
  11. Dyspnoeashortness of breath2.3%29
  12. Malaisegeneral feeling of being unwell2.1%26
  13. Nauseafeeling sick2.1%26
  14. Loss of consciousnesspassing out2%25
  15. Off label useused for a purpose or in a way not on the label2%25
  16. Renal failurekidney failure2%25
  17. Angioedemadeep swelling of skin or mucous membranes1.8%23
  18. Cardiac arrestthe heart stopped1.8%22
  19. Toxic epidermal necrolysisa severe skin reaction with peeling1.8%22
  20. Anaphylactic reactiona severe, sudden allergic reaction1.7%21
  21. Cardio-respiratory arrestthe heart and breathing stopped1.6%20
  22. Diarrhoealoose or frequent stools1.6%20
  23. Drug interactionan interaction between medicines1.5%19
  24. Hyperthyroidismoveractive thyroid1.4%18
  25. Rash pruritican itchy rash1.4%18

Top 30 of 232 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 radiographic contrast agent 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

Death8.4%106
Life-threatening12.8%161
Hospitalisation (initial or prolonged)61.8%777
Disability0.2%3
Congenital anomaly0.1%1
Other serious54.3%682
Not serious0.2%2

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 26,987 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 20.2%2
2 to 110.1%1
12 to 171.5%19
18 to 449.2%116
45 to 6436.1%454
65 to 7421.9%275
75 and over24.4%307
Age not given6.6%83

Patient sex

Female47.1%592
Male46.7%587
Not given6.2%78

Who reported

Physician58.7%738
Pharmacist13.8%173
Other health professional23.3%293
Lawyer0.2%2
Consumer or non-health professional3.5%44
Not given0.6%7

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Computerised tomogram55544.2%
Scan with contrast806.4%
Angiocardiogram685.4%
Imaging procedure645.1%
Computerised tomogram abdomen524.1%
Scan342.7%

The indication field is filled in by the reporter and is often blank; shares are of all 1,257 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Iomeron reports
Lovenox14811.8%
Pantoprazole14011.1%
Furosemide1189.4%
Kardegic1068.4%
Acetaminophen997.9%
Atorvastatin776.1%
Piperacillin sodium,tazobactam sodium685.4%
Lansoprazole635%
Vancomycin594.7%
Heparin sodium554.4%

Other products listed in reports where Iomeron 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

MeasureIomeronRadiographic contrast agentAll reports
Reports as suspect product1,25726,98720,646,523
Share of that pool—4.7%0%
Reports, latest 12 months301—1,332,454
Marked serious99.8%77%57.4%
Death recorded among outcomes, per 1,000 reports846391
Hospitalisation recorded, per 1,000 reports618296213
Consumer-filed share3.5%6.7%45.8%
Top term, share of reportsRash maculo-papular 16.4%median 1.6%0.1%

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 radiographic contrast agent class

DrugName typeReportsLatest 12 monthsMarked serious
Omnipaquebrand7,56266180.7%
Ultravistbrand7,22147063%
Visipaquebrand2,87721491.6%
Optiraybrand2,2475672.8%
Ioversolgeneric1,3895474.5%
Isovuebrand1,13916256.5%
Iopamidolgeneric1,0818980.9%
Lipiodolbrand1,06915896.9%
Iopromidegeneric6222194.7%
Iohexolgeneric5234781.5%

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 Iomeron reports

How many adverse event reports has FDA received for Iomeron?

1,257 reports list Iomeron as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 301 of them arrived in the latest 12 months. Another 73 list it only as a concomitant medication.

What reactions are recorded in Iomeron reports?

rash maculo-papular (16.4%), drug reaction with eosinophilia and systemic symptoms (13%), acute kidney injury (10.5%), eosinophilia (8.2%) and toxic skin eruption (7.6%). 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 Iomeron was responsible.

How serious are the reports?

99.8% are marked serious by the reporter. Among the outcomes recorded, 8.4% of reports include death and 61.8% 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 (58.7%), other health professional (23.3%) and pharmacist (13.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Iomeron rising?

301 reports in the 12 months to June 2026, up 51% from 200 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 Iomeron 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 Iomeron?

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 Iomeron as a suspect or interacting product; reports listing it only as a concomitant medication (73) 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.