Reported Reactions

Drugs › Proton pump inhibitor

Generic name

Pantoprazole: adverse event reports filed with FDA

44,980 reports list it as a suspect or interacting product, 2004–2026. Class: Proton pump inhibitor. Also reported as Pantoprazole 40mg, Pantoprazole /01263202/, Pantoprazole /01263204/.

44,980
reports as suspect product
0.2% of all reports · about 2,000 a year
2,710
reports, 12 months to June 2026
3,370 in the 12 months before
95.2%
marked serious by the reporter
86.4% across the class
12.4%
record death among outcomes, as reported
5,562 reports · not verified by FDA

44,980 adverse event reports received by FDA list pantoprazole, a generic name as a suspect or interacting product, from January 2004 to June 2026. A further 150,884 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, 2,710 reports listed it, down 20% from 3,370 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 2,000 reports a year and 0.2% of the 20,646,523 reports in the database, and 9.3% of the reports for the proton pump inhibitor 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 chronic kidney disease (21.3%), acute kidney injury (14.3%) and drug ineffective (9.1%). A report can list several reactions, so shares add to more than 100%; 3,365 different terms appear across these reports. Chronic kidney disease is recorded in 21.3% of these reports, a smaller share than in the median proton pump inhibitor drug (31.6%).

95.2% of the reports are marked serious by the reporter (86.4% across the class); 12.4% record death among the outcomes and 40.4% record hospitalisation, as reported. 31.7% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (25.2%). 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

0235470Jul 2021: 470Aug 2021: 436Sep 2021: 399Oct 2021: 349Nov 2021: 319Dec 2021: 4122022Jan 2022: 252Feb 2022: 393Mar 2022: 357Apr 2022: 350May 2022: 328Jun 2022: 317Jul 2022: 274Aug 2022: 361Sep 2022: 325Oct 2022: 277Nov 2022: 324Dec 2022: 2692023Jan 2023: 296Feb 2023: 309Mar 2023: 283Apr 2023: 324May 2023: 258Jun 2023: 282Jul 2023: 212Aug 2023: 283Sep 2023: 274Oct 2023: 242Nov 2023: 260Dec 2023: 2162024Jan 2024: 275Feb 2024: 400Mar 2024: 358Apr 2024: 394May 2024: 312Jun 2024: 248Jul 2024: 346Aug 2024: 274Sep 2024: 273Oct 2024: 307Nov 2024: 270Dec 2024: 2842025Jan 2025: 284Feb 2025: 283Mar 2025: 277Apr 2025: 249May 2025: 222Jun 2025: 301Jul 2025: 273Aug 2025: 215Sep 2025: 243Oct 2025: 234Nov 2025: 198Dec 2025: 2422026Jan 2026: 202Feb 2026: 193Mar 2026: 214Apr 2026: 231May 2026: 204Jun 2026: 261

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

04,4018,8022004: 3220042005: 452006: 172007: 720072008: 162009: 322010: 25720102011: 4322012: 5852013: 50020132014: 7502015: 7972016: 1,01720162017: 1,4932018: 5,5612019: 8,80220192020: 4,7652021: 4,7392022: 3,82720222023: 3,2392024: 3,7412025: 3,02120252026: 1,305

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Pantoprazole reports recording the termmedian drug in proton pump inhibitor

  1. Chronic kidney diseaselong-term kidney disease21.3%9,601
  2. Acute kidney injurysudden loss of kidney function14.3%6,411
  3. Drug ineffectivethe medicine did not work as expected9.1%4,080
  4. Renal failurekidney failure7.9%3,550
  5. Dyspnoeashortness of breath6.6%2,960
  6. Off label useused for a purpose or in a way not on the label6%2,702
  7. End stage renal diseasekidney failure needing dialysis or transplant5.8%2,606
  8. Fatiguetiredness5.7%2,583
  9. Nauseafeeling sick5.6%2,499
  10. Painpain, site not specified5.3%2,395
  11. Diarrhoealoose or frequent stools5.1%2,277
  12. Asthmaasthma4.7%2,101
  13. Hypertensionhigh blood pressure4.4%1,967
  14. Headachehead pain4.3%1,946
  15. Renal injury4.3%1,939
  16. Vomitingbeing sick4.2%1,901
  17. Condition aggravatedthe condition being treated got worse4.2%1,880
  18. Rashskin rash3.8%1,717
  19. Pyrexiafever3.8%1,712
  20. Dizzinesslight-headedness or unsteadiness3.8%1,710
  21. Astheniaweakness or lack of energy3.7%1,673
  22. Arthralgiajoint pain3.7%1,647
  23. Drug interactionan interaction between medicines3.6%1,641
  24. Malaisegeneral feeling of being unwell3.6%1,606
  25. Wheezingwheezing3.5%1,557
  26. Drug hypersensitivityan allergic-type reaction to a medicine3.2%1,431
  27. Abdominal painstomach or belly pain3.1%1,381
  28. Pneumonialung infection3%1,360
  29. Rheumatoid arthritisrheumatoid arthritis, an inflammatory joint disease3%1,359

Top 30 of 3,365 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 22 drugs in the proton pump inhibitor 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

Death12.4%5,562
Life-threatening8.6%3,885
Hospitalisation (initial or prolonged)40.4%18,167
Disability5.4%2,428
Congenital anomaly2%903
Other serious73.3%32,968
Not serious4.8%2,152

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 484,090 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%120
2 to 110.5%228
12 to 170.5%245
18 to 4411%4,957
45 to 6425.2%11,339
65 to 7416.1%7,258
75 and over16.3%7,314
Age not given30.1%13,519

Patient sex

Female49.5%22,271
Male35.2%15,855
Not given15.2%6,854

Who reported

Physician25.2%11,331
Pharmacist8.8%3,947
Other health professional31.7%14,237
Lawyer9.9%4,466
Consumer or non-health professional19.7%8,878
Not given4.7%2,121

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 34.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Gastrooesophageal reflux disease9,54021.2%
Prophylaxis against gastrointestinal ulcer1,1812.6%
Prophylaxis1,1542.6%
Dyspepsia1,0222.3%
Gastritis5631.3%
Abdominal pain upper3500.8%

The indication field is filled in by the reporter and is often blank; shares are of all 44,980 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Pantoprazole reports
Nexium8,23718.3%
Omeprazole7,91017.6%
Pantoprazole sodium7,40816.5%
Prevacid7,13115.9%
Prilosec6,38014.2%
Furosemide5,80312.9%
Prednisone5,69212.7%
Acetaminophen5,32311.8%
Aspirin4,63310.3%
Nexium 24HR4,55110.1%

Other products listed in reports where Pantoprazole 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

MeasurePantoprazoleProton pump inhibitorAll reports
Reports as suspect product44,980484,09020,646,523
Share of that pool—9.3%0.2%
Reports, latest 12 months2,710—1,332,454
Marked serious95.2%86.4%57.4%
Death recorded among outcomes, per 1,000 reports12410591
Hospitalisation recorded, per 1,000 reports404199213
Consumer-filed share19.7%26.2%45.8%
Top term, share of reportsChronic kidney disease 21.3%median 31.6%0.4%

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 proton pump inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Nexiumbrand85,36757668.6%
Omeprazolegeneric61,1762,50689.4%
Pantoprazole sodiumgeneric44,0981,62990.9%
Prilosecbrand42,34311588.3%
Prevacidbrand40,15127395.8%
Nexium 24HRbrand27,75330085.1%
Lansoprazolegeneric26,5701,74994.8%
Prilosec OTCbrand24,54911978.4%
Dexilantbrand23,62123391.5%
Prevacid 24 HRbrand20,1361392.6%
Esomeprazolegeneric17,1931,29396.8%
Aciphexbrand7,246392.1%
Esomeprazole magnesiumgeneric5,01436882.5%
Omeprazole magnesiumgeneric4,12017574.9%
Rabeprazolegeneric2,69318090.8%

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 Pantoprazole reports

How many adverse event reports has FDA received for Pantoprazole?

44,980 reports list Pantoprazole as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 2,710 of them arrived in the latest 12 months. Another 150,884 list it only as a concomitant medication.

What reactions are recorded in Pantoprazole reports?

chronic kidney disease (21.3%), acute kidney injury (14.3%), drug ineffective (9.1%), renal failure (7.9%) and dyspnoea (6.6%). 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 Pantoprazole was responsible.

How serious are the reports?

95.2% are marked serious by the reporter. Among the outcomes recorded, 12.4% of reports include death and 40.4% 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 (31.7%), physician (25.2%) and consumer or non-health professional (19.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Pantoprazole rising?

2,710 reports in the 12 months to June 2026, down 20% from 3,370 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 Pantoprazole 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 Pantoprazole?

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 Pantoprazole as a suspect or interacting product; reports listing it only as a concomitant medication (150,884) 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.