Reported Reactions

Drugs › Sulfonylurea

Generic name

Glyburide: adverse event reports filed with FDA

2,696 reports list it as a suspect or interacting product, 2004–2026. Class: Sulfonylurea. Also reported as Glyburide Tablets Usp 5mg, Glyburide Tablets.

2,696
reports as suspect product
0% of all reports · about 120 a year
66
reports, 12 months to June 2026
72 in the 12 months before
76.9%
marked serious by the reporter
70.9% across the class
13.2%
record death among outcomes, as reported
356 reports · not verified by FDA

2,696 adverse event reports received by FDA list glyburide, a generic name as a suspect or interacting product, from January 2004 to June 2026. A further 21,475 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, 66 reports listed it, close to the 72 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 120 reports a year and 0% of the 20,646,523 reports in the database, and 17.7% of the reports for the sulfonylurea 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 hypoglycaemia (26.1%), blood glucose increased (10.2%) and drug ineffective (7%). A report can list several reactions, so shares add to more than 100%; 612 different terms appear across these reports. Hypoglycaemia is recorded in 26.1% of these reports, a larger share than in the median sulfonylurea drug (18.1%).

76.9% of the reports are marked serious by the reporter (70.9% across the class); 13.2% record death among the outcomes and 44% record hospitalisation, as reported. 29.6% of the reports came from consumers, and the largest patient age group is 65 to 74 (21.4%). 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

01019Jul 2021: 5Aug 2021: 3Sep 2021: 2Oct 2021: 10Nov 2021: 5Dec 2021: 72022Jan 2022: 5Feb 2022: 3Mar 2022: 5Apr 2022: 9May 2022: 9Jun 2022: 7Jul 2022: 5Aug 2022: 8Sep 2022: 4Oct 2022: 9Nov 2022: 7Dec 2022: 32023Jan 2023: 6Feb 2023: 5Mar 2023: 17Apr 2023: 14May 2023: 16Jun 2023: 10Jul 2023: 8Aug 2023: 5Sep 2023: 5Oct 2023: 17Nov 2023: 5Dec 2023: 42024Jan 2024: 4Feb 2024: 6Mar 2024: 8Apr 2024: 12May 2024: 4Jun 2024: 3Jul 2024: 3Aug 2024: 3Sep 2024: 4Oct 2024: 7Nov 2024: 5Dec 2024: 52025Jan 2025: 15Feb 2025: 19Mar 2025: 2Apr 2025: 5May 2025: 2Jun 2025: 2Jul 2025: 2Aug 2025: 5Sep 2025: 4Oct 2025: 3Nov 2025: 1Dec 2025: 62026Jan 2026: 6Feb 2026: 5Mar 2026: 8Apr 2026: 6May 2026: 12Jun 2026: 8

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

01062112004: 14920042005: 1142006: 1102007: 12120072008: 1152009: 1302010: 17920102011: 1952012: 2112013: 17020132014: 1562015: 1112016: 14220162017: 862018: 1002019: 9220192020: 892021: 642022: 7420222023: 1122024: 642025: 6620252026: 45

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Glyburide reports recording the termmedian drug in sulfonylurea

  1. Hypoglycaemialow blood sugar26.1%703
  2. Blood glucose increasedraised blood sugar reading10.2%276
  3. Drug ineffectivethe medicine did not work as expected7%189
  4. Blood glucose decreasedlow blood sugar reading6.5%176
  5. Toxicity to various agentspoisoning or toxic effect of one or more substances5.8%157
  6. Drug interactionan interaction between medicines5.5%147
  7. Completed suicidedeath by suicide5.1%138
  8. Dizzinesslight-headedness or unsteadiness4.5%120
  9. Nauseafeeling sick4.3%115
  10. Astheniaweakness or lack of energy4%108
  11. Diarrhoealoose or frequent stools3.4%93
  12. Weight decreasedweight loss3.3%90
  13. Falla fall3.2%85
  14. Confusional stateconfusion3.1%84
  15. Drug intolerancethe medicine was not tolerated3.1%83
  16. Anaphylactic reactiona severe, sudden allergic reaction2.9%78
  17. Hyperhidrosisexcessive sweating2.6%70
  18. Hypotensionlow blood pressure2.5%67
  19. Loss of consciousnesspassing out2.3%61
  20. Coma2.1%57
  21. Lactic acidosisa build-up of lactic acid in the blood2%55
  22. Glycosylated haemoglobin increaseda raised HbA1c, the long-term sugar measure2%54
  23. Diabetes mellitus inadequate controldiabetes not well controlled1.9%52
  24. Decreased appetitereduced appetite1.9%51
  25. Drug hypersensitivityan allergic-type reaction to a medicine1.9%51
  26. Abdominal pain upperupper stomach pain1.9%50
  27. Acute kidney injurysudden loss of kidney function1.8%48
  28. Malaisegeneral feeling of being unwell1.7%47

Top 30 of 612 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 sulfonylurea 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

Death13.2%356
Life-threatening8.2%220
Hospitalisation (initial or prolonged)44%1,186
Disability1.3%35
Congenital anomaly0.6%17
Other serious34.6%934
Not serious23.1%622

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 15,194 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 20.9%24
2 to 110.9%23
12 to 170%1
18 to 445.5%148
45 to 6421.2%571
65 to 7421.4%577
75 and over20.5%553
Age not given29.6%799

Patient sex

Female39.5%1,065
Male52%1,401
Not given8.5%230

Who reported

Physician21.8%589
Pharmacist16.5%445
Other health professional22.6%609
Lawyer0.2%6
Consumer or non-health professional29.6%797
Not given9.3%250

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 62.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Diabetes mellitus55920.7%
Type 2 diabetes mellitus39114.5%
Diabetes mellitus non-insulin-dependent943.5%
Gestational diabetes271%
Blood glucose increased110.4%
Ill-defined disorder100.4%

The indication field is filled in by the reporter and is often blank; shares are of all 2,696 reports.

In context

MeasureGlyburideSulfonylureaAll reports
Reports as suspect product2,69615,19420,646,523
Share of that pool—17.7%0%
Reports, latest 12 months66—1,332,454
Marked serious76.9%70.9%57.4%
Death recorded among outcomes, per 1,000 reports13212391
Hospitalisation recorded, per 1,000 reports440363213
Consumer-filed share29.6%36.5%45.8%
Top term, share of reportsHypoglycaemia 26.1%median 18.1%0.2%

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 sulfonylurea class

DrugName typeReportsLatest 12 monthsMarked serious
Glipizidegeneric6,61621458.7%
Glimepiridegeneric5,28922483.4%
Glucotrolbrand593069.3%

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 Glyburide reports

How many adverse event reports has FDA received for Glyburide?

2,696 reports list Glyburide as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 66 of them arrived in the latest 12 months. Another 21,475 list it only as a concomitant medication.

What reactions are recorded in Glyburide reports?

hypoglycaemia (26.1%), blood glucose increased (10.2%), drug ineffective (7%), blood glucose decreased (6.5%) and toxicity to various agents (5.8%). 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 Glyburide was responsible.

How serious are the reports?

76.9% are marked serious by the reporter. Among the outcomes recorded, 13.2% of reports include death and 44% 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 (29.6%), other health professional (22.6%) and physician (21.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Glyburide rising?

66 reports in the 12 months to June 2026, close to the 72 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 Glyburide 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 Glyburide?

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 Glyburide as a suspect or interacting product; reports listing it only as a concomitant medication (21,475) 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.