Reported Reactions

Drugs › Aminoglycoside antibacterial

Generic name

Neomycin sulfate: adverse event reports filed with FDA

770 reports list it as a suspect or interacting product, 2010–2026. Class: Aminoglycoside antibacterial. Also reported as Neomycin Sulfate Tab.

770
reports as suspect product
0% of all reports · about 47 a year
57
reports, 12 months to June 2026
115 in the 12 months before
59.4%
marked serious by the reporter
80.3% across the class
22.1%
record death among outcomes, as reported
170 reports · not verified by FDA

770 adverse event reports received by FDA list neomycin sulfate, a generic name as a suspect or interacting product, from January 2010 to June 2026. A further 438 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, 57 reports listed it, down 50% from 115 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 47 reports a year and 0% of the 20,646,523 reports in the database, and 2% of the reports for the aminoglycoside antibacterial 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 (51.6%), drug ineffective (43.8%) and off label use (28.3%). A report can list several reactions, so shares add to more than 100%; 341 different terms appear across these reports. Drug hypersensitivity is recorded in 51.6% of these reports, a larger share than in the median aminoglycoside antibacterial drug (1.2%).

59.4% of the reports are marked serious by the reporter (80.3% across the class); 22.1% record death among the outcomes and 34.3% record hospitalisation, as reported. 54.2% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (19.6%). 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

01020Jul 2021: 4Aug 2021: 3Sep 2021: 2Oct 2021: 9Nov 2021: 6Dec 2021: 62022Jan 2022: 3Feb 2022: 11Mar 2022: 11Apr 2022: 11May 2022: 1Jun 2022: 3Jul 2022: 4Aug 2022: 7Sep 2022: 2Oct 2022: 7Nov 2022: 8Dec 2022: 62023Jan 2023: 2Feb 2023: 4Mar 2023: 7Apr 2023: 2May 2023: 6Jun 2023: 6Jul 2023: 2Aug 2023: 5Sep 2023: 6Oct 2023: 2Nov 2023: 5Dec 2023: 82024Jan 2024: 2Feb 2024: 5Mar 2024: 4Apr 2024: 12May 2024: 5Jun 2024: 10Jul 2024: 2Aug 2024: 9Sep 2024: 6Oct 2024: 15Nov 2024: 12Dec 2024: 202025Jan 2025: 14Feb 2025: 15Mar 2025: 11Apr 2025: 5May 2025: 1Jun 2025: 5Jul 2025: 12Aug 2025: 7Sep 2025: 7Oct 2025: 1Nov 2025: 4Dec 2025: 112026Jan 2026: 3Feb 2026: 2Mar 2026: 0Apr 2026: 4May 2026: 5Jun 2026: 1

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

0511022010: 220102011: 82012: 2320122013: 162014: 3620142015: 302016: 6020162017: 352018: 3520182019: 702020: 4520202021: 712022: 7420222023: 552024: 10220242025: 932026: 152026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Neomycin sulfate reports recording the termmedian drug in aminoglycoside antibacterial

  1. Drug hypersensitivityan allergic-type reaction to a medicine51.6%397
  2. Drug ineffectivethe medicine did not work as expected43.8%337
  3. Off label useused for a purpose or in a way not on the label28.3%218
  4. Painpain, site not specified28.2%217
  5. Nauseafeeling sick27.5%212
  6. Infusion related reactiona reaction during or soon after an infusion27.1%209
  7. Macular degenerationa disease of the central retina22.9%176
  8. Rashskin rash20.8%160
  9. Dyspnoeashortness of breath20.1%155
  10. Type 2 diabetes mellitustype 2 diabetes19.9%153
  11. Rheumatoid arthritisrheumatoid arthritis, an inflammatory joint disease19.5%150
  12. Swellingswelling18.6%143
  13. Product use in unapproved indicationused for a purpose not on the label17.8%137
  14. Systemic lupus erythematosuslupus, an autoimmune disease17.4%134
  15. Treatment failurethe treatment did not work16.8%129
  16. Malaisegeneral feeling of being unwell16.5%127
  17. Confusional stateconfusion16.1%124
  18. Sleep disordera sleep problem16.1%124
  19. Headachehead pain16%123
  20. Product use issuea problem in how the product was used16%123
  21. Synovitis16%123
  22. Wound16%123
  23. Pemphigus15.7%121
  24. Pericarditisinflammation of the sac around the heart15.7%121

Top 30 of 341 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 15 drugs in the aminoglycoside antibacterial 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

Death22.1%170
Life-threatening19.9%153
Hospitalisation (initial or prolonged)34.3%264
Disability19.9%153
Congenital anomaly15.6%120
Other serious57.8%445
Not serious40.6%313

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 37,840 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 20.3%2
2 to 110.1%1
12 to 170.4%3
18 to 4419.6%151
45 to 649.9%76
65 to 7416.2%125
75 and over5.1%39
Age not given48.4%373

Patient sex

Female78.1%601
Male6.9%53
Not given15.1%116

Who reported

Physician20.4%157
Pharmacist5.5%42
Other health professional54.2%417
Lawyer0.3%2
Consumer or non-health professional19.5%150
Not given0.3%2

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 43% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Rheumatoid arthritis11414.8%
Skin laceration30.4%
Postoperative care20.3%

The indication field is filled in by the reporter and is often blank; shares are of all 770 reports.

In context

MeasureNeomycin sulfateAminoglycoside antibacterialAll reports
Reports as suspect product77037,84020,646,523
Share of that pool—2%0%
Reports, latest 12 months57—1,332,454
Marked serious59.4%80.3%57.4%
Death recorded among outcomes, per 1,000 reports22117391
Hospitalisation recorded, per 1,000 reports343415213
Consumer-filed share19.5%31.9%45.8%
Top term, share of reportsDrug hypersensitivity 51.6%median 1.2%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 aminoglycoside antibacterial class

DrugName typeReportsLatest 12 monthsMarked serious
Arikaycebrand6,47171468.7%
Gentamicingeneric5,59128594.7%
Amikacingeneric5,38053191.9%
Tobramycingeneric4,82738883.4%
Tobibrand3,7021282.7%
TOBI Podhalerbrand2,6494072.7%
Bethkisbrand1,9316257.5%
Gentamicin sulfategeneric1,6386783.5%
Neomycinbrand1,11025692.7%
TobraDexbrand9618873.9%
Amikacin sulfategeneric8284993.5%
Streptomycingeneric692889.6%
Kitabis Pakbrand6576873.2%
Bacitracingeneric633622.6%

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 Neomycin sulfate reports

How many adverse event reports has FDA received for Neomycin sulfate?

770 reports list Neomycin sulfate as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 57 of them arrived in the latest 12 months. Another 438 list it only as a concomitant medication.

What reactions are recorded in Neomycin sulfate reports?

drug hypersensitivity (51.6%), drug ineffective (43.8%), off label use (28.3%), pain (28.2%) and nausea (27.5%). 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 Neomycin sulfate was responsible.

How serious are the reports?

59.4% are marked serious by the reporter. Among the outcomes recorded, 22.1% of reports include death and 34.3% 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 (54.2%), physician (20.4%) and consumer or non-health professional (19.5%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Neomycin sulfate rising?

57 reports in the 12 months to June 2026, down 50% from 115 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 Neomycin sulfate 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 Neomycin sulfate?

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 Neomycin sulfate as a suspect or interacting product; reports listing it only as a concomitant medication (438) 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.