Reported Reactions

Drugs › Human immunoglobulin G

Generic name

Immune globulin: adverse event reports filed with FDA

2,625 reports list it as a suspect or interacting product, 2004–2026. Class: Human immunoglobulin G. Also reported as Immune Globulin Nos, Immune Globulin Injection.

2,625
reports as suspect product
0% of all reports · about 117 a year
525
reports, 12 months to June 2026
521 in the 12 months before
95.6%
marked serious by the reporter
65.3% across the class
20%
record death among outcomes, as reported
525 reports · not verified by FDA

Between February 2004 and June 2026, 2,625 adverse event reports received by FDA list immune globulin, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (1,991) are left out of every figure here.

In the 12 months to June 2026, 525 reports listed it, close to the 521 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 117 reports a year and 0% of the 20,646,523 reports in the database, and 3.7% of the reports for the human immunoglobulin G 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 (38.2%), off label use (24.6%) and drug ineffective for unapproved indication (10.3%). A report can list several reactions, so shares add to more than 100%; 679 different terms appear across these reports. Drug ineffective is recorded in 38.2% of these reports, a larger share than in the median human immunoglobulin G drug (2.7%).

95.6% of the reports are marked serious by the reporter (65.3% across the class); 20% record death among the outcomes and 46.3% record hospitalisation, as reported. 64.3% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (22.2%). 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

04283Jul 2021: 11Aug 2021: 21Sep 2021: 22Oct 2021: 27Nov 2021: 24Dec 2021: 252022Jan 2022: 15Feb 2022: 4Mar 2022: 13Apr 2022: 15May 2022: 11Jun 2022: 20Jul 2022: 23Aug 2022: 28Sep 2022: 38Oct 2022: 21Nov 2022: 28Dec 2022: 92023Jan 2023: 21Feb 2023: 17Mar 2023: 17Apr 2023: 12May 2023: 20Jun 2023: 16Jul 2023: 19Aug 2023: 13Sep 2023: 11Oct 2023: 12Nov 2023: 18Dec 2023: 162024Jan 2024: 19Feb 2024: 16Mar 2024: 21Apr 2024: 46May 2024: 47Jun 2024: 25Jul 2024: 29Aug 2024: 35Sep 2024: 37Oct 2024: 83Nov 2024: 41Dec 2024: 452025Jan 2025: 40Feb 2025: 31Mar 2025: 56Apr 2025: 44May 2025: 39Jun 2025: 41Jul 2025: 64Aug 2025: 56Sep 2025: 61Oct 2025: 52Nov 2025: 31Dec 2025: 452026Jan 2026: 40Feb 2026: 35Mar 2026: 48Apr 2026: 26May 2026: 36Jun 2026: 31

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

02805602004: 820042005: 122006: 832007: 2020072008: 272009: 402010: 4820102011: 492012: 892013: 1520132014: 92015: 182016: 3220162017: 342018: 592019: 10120192020: 1262021: 2182022: 22520222023: 1922024: 4442025: 56020252026: 216

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Immune globulin reports recording the termmedian drug in human immunoglobulin g

  1. Drug ineffectivethe medicine did not work as expected38.2%1,004
  2. Off label useused for a purpose or in a way not on the label24.6%646
  3. Condition aggravatedthe condition being treated got worse8.2%216
  4. Therapy non-responderthe treatment did not work5.4%142
  5. Treatment failurethe treatment did not work4.4%115
  6. Product use in unapproved indicationused for a purpose not on the label4.1%107
  7. Diarrhoealoose or frequent stools3.9%102
  8. Septic shockshock arising from infection3.9%102
  9. Vomitingbeing sick3.6%95
  10. Pyrexiafever3.4%90
  11. Nauseafeeling sick3.3%87
  12. Maternal exposure during pregnancythe mother took the medicine during pregnancy3.2%85
  13. Drug intolerancethe medicine was not tolerated3.1%81
  14. Intentional product use issuedeliberate use not as intended2.8%73
  15. Psoriasispsoriasis, a skin condition2.7%71
  16. Respiratory failurethe lungs could not supply enough oxygen2.5%65
  17. Synovitis2.5%65
  18. Adrenal insufficiencythe adrenal glands produce too little hormone2.4%64
  19. Disease progressionthe disease advanced2.4%64
  20. Dizzinesslight-headedness or unsteadiness2.3%60
  21. Infectionan infection, type not specified2.2%59
  22. Obesity2.2%59
  23. Arthritis2.2%57
  24. Drug exposure during pregnancythe medicine was taken during pregnancy2.2%57
  25. Multiple organ dysfunction syndromeseveral organs failing2.2%57
  26. Fatiguetiredness2%52
  27. Sepsisa severe body-wide response to infection1.9%50

Top 30 of 679 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 human immunoglobulin g 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

Death20%525
Life-threatening13.1%344
Hospitalisation (initial or prolonged)46.3%1,215
Disability1.2%32
Congenital anomaly0.5%14
Other serious65.1%1,708
Not serious4.4%115

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 70,639 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 22.9%77
2 to 119.6%253
12 to 175.3%139
18 to 4422.2%582
45 to 6420.5%539
65 to 7411.5%302
75 and over5.7%149
Age not given22.2%584

Patient sex

Female47.1%1,237
Male40.3%1,057
Not given12.6%331

Who reported

Physician21.8%571
Pharmacist2.5%65
Other health professional64.3%1,687
Lawyer0%1
Consumer or non-health professional5.9%154
Not given5.6%147

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 39.3% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Immune thrombocytopenia1054%
Haemophagocytic lymphohistiocytosis843.2%
Dermatomyositis772.9%
Immunosuppressant drug therapy682.6%
Juvenile idiopathic arthritis331.3%
Myasthenia gravis331.3%

The indication field is filled in by the reporter and is often blank; shares are of all 2,625 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Immune globulin reports
Methylprednisolone66325.3%
Prednisone66125.2%
Rituximab65525%
Mycophenolate mofetil57621.9%
Tacrolimus37514.3%
Prednisolone36413.9%
Methotrexate34413.1%
Dexamethasone29911.4%
Cyclosporine29711.3%
Cyclophosphamide27510.5%

Other products listed in reports where Immune globulin 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

MeasureImmune globulinHuman immunoglobulin GAll reports
Reports as suspect product2,62570,63920,646,523
Share of that pool—3.7%0%
Reports, latest 12 months525—1,332,454
Marked serious95.6%65.3%57.4%
Death recorded among outcomes, per 1,000 reports2007491
Hospitalisation recorded, per 1,000 reports463249213
Consumer-filed share5.9%31.9%45.8%
Top term, share of reportsDrug ineffective 38.2%median 2.7%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 human immunoglobulin g class

DrugName typeReportsLatest 12 monthsMarked serious
Hizentrabrand22,9161,42245.8%
Human immunoglobulin ggeneric17,1392,94394.5%
Privigenbrand8,71857969.7%
GAMMAGARD Liquidbrand8,35025362.7%
Cuvitrubrand4,00219448.7%
Gamunex-Cbrand3,62295938.7%
Octagam Immune Globulin (Human)brand1,1218578.7%
Xembifybrand81724544.1%
Immune globulin intravenous (human)generic670293.9%
Rhophylacbrand6594056.1%

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 Immune globulin reports

How many adverse event reports has FDA received for Immune globulin?

2,625 reports list Immune globulin as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 525 of them arrived in the latest 12 months. Another 1,991 list it only as a concomitant medication.

What reactions are recorded in Immune globulin reports?

drug ineffective (38.2%), off label use (24.6%), drug ineffective for unapproved indication (10.3%), condition aggravated (8.2%) and therapy non-responder (5.4%). 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 Immune globulin was responsible.

How serious are the reports?

95.6% are marked serious by the reporter. Among the outcomes recorded, 20% of reports include death and 46.3% 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?

other health professional (64.3%), physician (21.8%) and consumer or non-health professional (5.9%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Immune globulin rising?

525 reports in the 12 months to June 2026, close to the 521 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 Immune globulin 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 Immune globulin?

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 Immune globulin as a suspect or interacting product; reports listing it only as a concomitant medication (1,991) 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.