Reported Reactions

Drugs › Parenteral iron replacement

Generic name

Venofer (iron sucrose): adverse event reports filed with FDA

5,417 reports list it as a suspect or interacting product, 2004–2026. Class: Parenteral iron replacement.

5,417
reports as suspect product
0% of all reports · about 241 a year
390
reports, 12 months to June 2026
488 in the 12 months before
73.4%
marked serious by the reporter
57.1% across the class
5.1%
record death among outcomes, as reported
274 reports · not verified by FDA

5,417 adverse event reports received by FDA list venofer (iron sucrose), a generic name as a suspect or interacting product, from January 2004 to June 2026. A further 2,602 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, 390 reports listed it, down 20% from 488 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 241 reports a year and 0% of the 20,646,523 reports in the database, and 33.4% of the reports for the parenteral iron replacement 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 hypersensitivity (17.2%), nausea (11.2%) and dyspnoea (11.1%). A report can list several reactions, so shares add to more than 100%; 717 different terms appear across these reports. Drug hypersensitivity is recorded in 17.2% of these reports, a larger share than in the median parenteral iron replacement drug (1.7%).

73.4% of the reports are marked serious by the reporter (57.1% across the class); 5.1% record death among the outcomes and 24.8% record hospitalisation, as reported. 55.1% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (28.1%). 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

053105Jul 2021: 33Aug 2021: 32Sep 2021: 36Oct 2021: 36Nov 2021: 35Dec 2021: 852022Jan 2022: 46Feb 2022: 25Mar 2022: 52Apr 2022: 33May 2022: 50Jun 2022: 33Jul 2022: 64Aug 2022: 61Sep 2022: 62Oct 2022: 50Nov 2022: 48Dec 2022: 1052023Jan 2023: 41Feb 2023: 40Mar 2023: 46Apr 2023: 32May 2023: 35Jun 2023: 33Jul 2023: 44Aug 2023: 38Sep 2023: 44Oct 2023: 28Nov 2023: 34Dec 2023: 1022024Jan 2024: 26Feb 2024: 21Mar 2024: 29Apr 2024: 22May 2024: 38Jun 2024: 20Jul 2024: 66Aug 2024: 36Sep 2024: 38Oct 2024: 32Nov 2024: 90Dec 2024: 272025Jan 2025: 54Feb 2025: 43Mar 2025: 26Apr 2025: 26May 2025: 16Jun 2025: 34Jul 2025: 21Aug 2025: 22Sep 2025: 31Oct 2025: 31Nov 2025: 97Dec 2025: 212026Jan 2026: 19Feb 2026: 28Mar 2026: 36Apr 2026: 17May 2026: 33Jun 2026: 34

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

03156292004: 2320042005: 302006: 312007: 8420072008: 682009: 1312010: 10020102011: 612012: 952013: 10220132014: 1002015: 2292016: 25620162017: 2662018: 2712019: 59920192020: 3462021: 4452022: 62920222023: 5172024: 4452025: 42220252026: 167

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Venofer (iron sucrose) reports recording the termmedian drug in parenteral iron replacement

  1. Drug hypersensitivityan allergic-type reaction to a medicine17.2%932
  2. Nauseafeeling sick11.2%608
  3. Dyspnoeashortness of breath11.1%599
  4. Pruritusitching8%433
  5. Vomitingbeing sick7.7%418
  6. Urticariahives6.9%376
  7. Dizzinesslight-headedness or unsteadiness6.5%352
  8. Hypotensionlow blood pressure6.4%344
  9. Off label useused for a purpose or in a way not on the label5.5%298
  10. Infusion related reactiona reaction during or soon after an infusion5.4%293
  11. Peripheral swellingswelling of the arms or legs4.8%262
  12. Rashskin rash4.8%261
  13. Headachehead pain4.5%243
  14. Back painback pain4.3%235
  15. Malaisegeneral feeling of being unwell4.1%220
  16. Paraesthesiatingling or pins and needles4%217
  17. Erythemaskin redness3.9%211
  18. Flushingsudden reddening or warmth of the skin3.9%211
  19. Hypersensitivityan allergic-type reaction3.9%211
  20. Chest painchest pain3.6%194
  21. Abdominal painstomach or belly pain3.5%191
  22. Diarrhoealoose or frequent stools3.5%190
  23. Chest discomfortchest discomfort3.3%177
  24. Hyperhidrosisexcessive sweating3.2%176
  25. Painpain, site not specified3.2%176
  26. Product quality issuea problem with the product itself3.2%173
  27. Burning sensationa burning feeling3.2%171
  28. Maternal exposure during pregnancythe mother took the medicine during pregnancy3.1%167
  29. Arthralgiajoint pain2.9%158
  30. Loss of consciousnesspassing out2.9%157

Top 30 of 717 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 9 drugs in the parenteral iron replacement 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

Death5.1%274
Life-threatening7.8%420
Hospitalisation (initial or prolonged)24.8%1,342
Disability1.3%70
Congenital anomaly0.3%14
Other serious47.5%2,573
Not serious26.6%1,439

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 16,234 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 20.6%30
2 to 110.8%42
12 to 171.2%63
18 to 4428.1%1,523
45 to 6422.2%1,205
65 to 7410.5%568
75 and over12.4%670
Age not given24.3%1,316

Patient sex

Female67.5%3,656
Male24.4%1,323
Not given8.1%438

Who reported

Physician11.7%632
Pharmacist17%923
Other health professional55.1%2,985
Lawyer0%2
Consumer or non-health professional13.7%741
Not given2.5%134

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 59.8% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Iron deficiency anaemia97518%
Anaemia64411.9%
Iron deficiency2464.5%
Blood iron decreased460.8%
Nephrogenic anaemia380.7%
Anaemia of pregnancy290.5%

The indication field is filled in by the reporter and is often blank; shares are of all 5,417 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Venofer (iron sucrose) reports
Mircera1,16321.5%
Calcitriol2765.1%
Ferinject1883.5%
Pantoprazole1222.3%
Aspirin1062%
Furosemide1041.9%
Acetaminophen961.8%
Heparin941.7%
Amlodipine801.5%
Vitamin d801.5%

Other products listed in reports where Venofer (iron sucrose) 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

MeasureVenofer (iron sucrose)Parenteral iron replacementAll reports
Reports as suspect product5,41716,23420,646,523
Share of that pool—33.4%0%
Reports, latest 12 months390—1,332,454
Marked serious73.4%57.1%57.4%
Death recorded among outcomes, per 1,000 reports515191
Hospitalisation recorded, per 1,000 reports248188213
Consumer-filed share13.7%24.9%45.8%
Top term, share of reportsDrug hypersensitivity 17.2%median 1.7%0.9%

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 parenteral iron replacement class

DrugName typeReportsLatest 12 monthsMarked serious
Injectaferbrand2,8131441.3%
Auryxiabrand1,6602924.1%
Ferahemebrand1,5412060.9%
Ferric carboxymaltosegeneric1,39522567.6%
Ferrlecitbrand1,1747772.4%
Accruferbrand95156713.8%
Infedbrand66510050.1%
Iron sucrosegeneric61824686.2%

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 Venofer (iron sucrose) reports

How many adverse event reports has FDA received for Venofer (iron sucrose)?

5,417 reports list Venofer (iron sucrose) as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 390 of them arrived in the latest 12 months. Another 2,602 list it only as a concomitant medication.

What reactions are recorded in Venofer (iron sucrose) reports?

drug hypersensitivity (17.2%), nausea (11.2%), dyspnoea (11.1%), pruritus (8%) and vomiting (7.7%). 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 Venofer (iron sucrose) was responsible.

How serious are the reports?

73.4% are marked serious by the reporter. Among the outcomes recorded, 5.1% of reports include death and 24.8% 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?

other health professional (55.1%), pharmacist (17%) and consumer or non-health professional (13.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Venofer (iron sucrose) rising?

390 reports in the 12 months to June 2026, down 20% from 488 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 Venofer (iron sucrose) 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 Venofer (iron sucrose)?

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 Venofer (iron sucrose) as a suspect or interacting product; reports listing it only as a concomitant medication (2,602) 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.