Reported Reactions

Drugs › Proton pump inhibitor

Generic name

Esomeprazole: adverse event reports filed with FDA

17,193 reports list it as a suspect or interacting product, 2004–2026. Class: Proton pump inhibitor. Also reported as Esomeprazole 40mg, Esomeprazole /01479302/, Esomeprazole 20mg.

17,193
reports as suspect product
0.1% of all reports · about 767 a year
1,293
reports, 12 months to June 2026
1,553 in the 12 months before
96.8%
marked serious by the reporter
86.4% across the class
9.6%
record death among outcomes, as reported
1,655 reports · not verified by FDA

Between February 2004 and June 2026, 17,193 adverse event reports received by FDA list esomeprazole, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (31,013) are left out of every figure here.

In the 12 months to June 2026, 1,293 reports listed it, down 17% from 1,553 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 767 reports a year and 0.1% of the 20,646,523 reports in the database, and 3.6% 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 (24.1%), acute kidney injury (16.5%) and headache (7.7%). A report can list several reactions, so shares add to more than 100%; 1,966 different terms appear across these reports. Chronic kidney disease is recorded in 24.1% of these reports, a smaller share than in the median proton pump inhibitor drug (31.6%).

96.8% of the reports are marked serious by the reporter (86.4% across the class); 9.6% record death among the outcomes and 38.1% record hospitalisation, as reported. 29.3% of the reports came from physicians, and the largest patient age group is 45 to 64 (26.4%). 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

0111221Jul 2021: 165Aug 2021: 107Sep 2021: 89Oct 2021: 114Nov 2021: 142Dec 2021: 1462022Jan 2022: 89Feb 2022: 146Mar 2022: 166Apr 2022: 144May 2022: 108Jun 2022: 110Jul 2022: 144Aug 2022: 114Sep 2022: 130Oct 2022: 64Nov 2022: 81Dec 2022: 1172023Jan 2023: 144Feb 2023: 110Mar 2023: 108Apr 2023: 212May 2023: 161Jun 2023: 122Jul 2023: 107Aug 2023: 136Sep 2023: 90Oct 2023: 107Nov 2023: 104Dec 2023: 1042024Jan 2024: 153Feb 2024: 221Mar 2024: 194Apr 2024: 194May 2024: 166Jun 2024: 106Jul 2024: 149Aug 2024: 134Sep 2024: 124Oct 2024: 102Nov 2024: 112Dec 2024: 1202025Jan 2025: 125Feb 2025: 152Mar 2025: 161Apr 2025: 130May 2025: 122Jun 2025: 122Jul 2025: 124Aug 2025: 119Sep 2025: 86Oct 2025: 119Nov 2025: 70Dec 2025: 1062026Jan 2026: 106Feb 2026: 112Mar 2026: 71Apr 2026: 151May 2026: 105Jun 2026: 124

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

01,7543,5082004: 2820042005: 352006: 212007: 1420072008: 372009: 412010: 9120102011: 642012: 742013: 14320132014: 1662015: 2372016: 33220162017: 3882018: 2,2112019: 3,50820192020: 1,5562021: 1,4492022: 1,41320222023: 1,5052024: 1,7752025: 1,43620252026: 669

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

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

  1. Chronic kidney diseaselong-term kidney disease24.1%4,144
  2. Acute kidney injurysudden loss of kidney function16.5%2,835
  3. Headachehead pain7.7%1,328
  4. Renal failurekidney failure7.1%1,215
  5. Fatiguetiredness6.5%1,111
  6. Nauseafeeling sick6.4%1,103
  7. Dyspnoeashortness of breath6.2%1,060
  8. Diarrhoealoose or frequent stools6.1%1,044
  9. Off label useused for a purpose or in a way not on the label5.9%1,008
  10. Renal injury5.8%1,001
  11. End stage renal diseasekidney failure needing dialysis or transplant5.6%971
  12. Pyrexiafever5.5%941
  13. Vomitingbeing sick5.4%922
  14. Drug ineffectivethe medicine did not work as expected5.2%889
  15. Malaisegeneral feeling of being unwell5.1%880
  16. Painpain, site not specified5.1%872
  17. Arthralgiajoint pain4.7%802
  18. Drug interactionan interaction between medicines4.6%798
  19. Pruritusitching4.6%795
  20. Dizzinesslight-headedness or unsteadiness4.4%762
  21. Abdominal pain upperupper stomach pain4.3%742
  22. Tinnitusringing in the ears3.9%665
  23. Anxietyanxiety3.8%648
  24. Palpitationsawareness of the heartbeat3.6%623
  25. Falla fall3.6%621
  26. Insomniadifficulty sleeping3.5%594
  27. Tachycardiafast heart rate3.4%589
  28. Coughcough3.4%577

Top 30 of 1,966 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

Death9.6%1,655
Life-threatening7%1,205
Hospitalisation (initial or prolonged)38.1%6,543
Disability2.9%505
Congenital anomaly0.7%120
Other serious72%12,387
Not serious3.2%557

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 20.6%97
2 to 110.4%77
12 to 170.9%155
18 to 4410.1%1,745
45 to 6426.4%4,539
65 to 7413.7%2,361
75 and over13.5%2,328
Age not given34.3%5,891

Patient sex

Female44.4%7,637
Male33.6%5,778
Not given22%3,778

Who reported

Physician29.3%5,029
Pharmacist8.2%1,408
Other health professional27.4%4,703
Lawyer12.5%2,155
Consumer or non-health professional20.5%3,523
Not given2.2%375

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 33% 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 disease3,52820.5%
Prophylaxis against gastrointestinal ulcer4682.7%
Prophylaxis4182.4%
Reflux laryngitis2971.7%
Gastritis2871.7%
Dyspepsia2651.5%

The indication field is filled in by the reporter and is often blank; shares are of all 17,193 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Esomeprazole reports
Omeprazole4,49526.1%
Prevacid3,73821.7%
Nexium3,67521.4%
Pantoprazole3,60621%
Lansoprazole3,34219.4%
Pantoprazole sodium3,07417.9%
Prilosec3,07217.9%
Nexium 24HR2,58415%
Prevacid 24 HR2,43714.2%
Acetaminophen2,04211.9%

Other products listed in reports where Esomeprazole 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

MeasureEsomeprazoleProton pump inhibitorAll reports
Reports as suspect product17,193484,09020,646,523
Share of that pool—3.6%0.1%
Reports, latest 12 months1,293—1,332,454
Marked serious96.8%86.4%57.4%
Death recorded among outcomes, per 1,000 reports9610591
Hospitalisation recorded, per 1,000 reports381199213
Consumer-filed share20.5%26.2%45.8%
Top term, share of reportsChronic kidney disease 24.1%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%
Pantoprazolegeneric44,9802,71095.2%
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%
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 Esomeprazole reports

How many adverse event reports has FDA received for Esomeprazole?

17,193 reports list Esomeprazole as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 1,293 of them arrived in the latest 12 months. Another 31,013 list it only as a concomitant medication.

What reactions are recorded in Esomeprazole reports?

chronic kidney disease (24.1%), acute kidney injury (16.5%), headache (7.7%), renal failure (7.1%) and fatigue (6.5%). 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 Esomeprazole was responsible.

How serious are the reports?

96.8% are marked serious by the reporter. Among the outcomes recorded, 9.6% of reports include death and 38.1% 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?

physician (29.3%), other health professional (27.4%) and consumer or non-health professional (20.5%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Esomeprazole rising?

1,293 reports in the 12 months to June 2026, down 17% from 1,553 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 Esomeprazole 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 Esomeprazole?

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 Esomeprazole as a suspect or interacting product; reports listing it only as a concomitant medication (31,013) 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.