Reported Reactions

Drugs › Angiotensin 2 receptor blocker

Generic name

Olmesartan medoxomil: adverse event reports filed with FDA

4,777 reports list it as a suspect or interacting product, 2004–2026. Class: Angiotensin 2 receptor blocker. Also reported as Olmesartan Medoxomil Tablets, Olmesartan Medoxomil 20mg Tablet, Olmesartan Medoxomil 5mg Tabs.

4,777
reports as suspect product
0% of all reports · about 216 a year
169
reports, 12 months to June 2026
136 in the 12 months before
90.6%
marked serious by the reporter
67.6% across the class
4.4%
record death among outcomes, as reported
209 reports · not verified by FDA

4,777 adverse event reports received by FDA list olmesartan medoxomil, a generic name as a suspect or interacting product, from June 2004 to June 2026. A further 7,232 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, 169 reports listed it, up 24% from 136 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 216 reports a year and 0% of the 20,646,523 reports in the database, and 2% of the reports for the angiotensin 2 receptor blocker class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded weight decreased (15.3%), diarrhoea (10.6%) and sprue-like enteropathy (7.6%). A report can list several reactions, so shares add to more than 100%; 889 different terms appear across these reports. Weight decreased is recorded in 15.3% of these reports, a larger share than in the median angiotensin 2 receptor blocker drug (2%).

90.6% of the reports are marked serious by the reporter (67.6% across the class); 4.4% record death among the outcomes and 56.1% record hospitalisation, as reported. 31.8% of the reports came from consumers, and the largest patient age group is 75 and over (21.1%). 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

03263Jul 2021: 17Aug 2021: 17Sep 2021: 36Oct 2021: 51Nov 2021: 63Dec 2021: 502022Jan 2022: 50Feb 2022: 52Mar 2022: 57Apr 2022: 29May 2022: 19Jun 2022: 30Jul 2022: 26Aug 2022: 43Sep 2022: 36Oct 2022: 33Nov 2022: 40Dec 2022: 472023Jan 2023: 49Feb 2023: 32Mar 2023: 28Apr 2023: 24May 2023: 33Jun 2023: 57Jul 2023: 48Aug 2023: 32Sep 2023: 17Oct 2023: 16Nov 2023: 15Dec 2023: 122024Jan 2024: 19Feb 2024: 26Mar 2024: 13Apr 2024: 29May 2024: 18Jun 2024: 29Jul 2024: 10Aug 2024: 8Sep 2024: 6Oct 2024: 14Nov 2024: 9Dec 2024: 192025Jan 2025: 11Feb 2025: 5Mar 2025: 10Apr 2025: 11May 2025: 18Jun 2025: 15Jul 2025: 5Aug 2025: 8Sep 2025: 11Oct 2025: 14Nov 2025: 7Dec 2025: 92026Jan 2026: 8Feb 2026: 11Mar 2026: 10Apr 2026: 26May 2026: 26Jun 2026: 34

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

04358692004: 320042005: 32006: 202007: 8420072008: 1872009: 1422010: 14920102011: 1542012: 2402013: 3920132014: 512015: 512016: 7320162017: 8692018: 3542019: 38620192020: 3592021: 3492022: 46220222023: 3632024: 2002025: 12420252026: 115

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Olmesartan medoxomil reports recording the termmedian drug in angiotensin 2 receptor blocker

  1. Weight decreasedweight loss15.3%730
  2. Diarrhoealoose or frequent stools10.6%504
  3. Sprue-like enteropathy7.6%364
  4. Hypotensionlow blood pressure6.7%318
  5. Acute kidney injurysudden loss of kidney function4.9%235
  6. Hospitalisationadmission to hospital4.9%234
  7. Drug ineffectivethe medicine did not work as expected4.6%222
  8. Dizzinesslight-headedness or unsteadiness4.5%213
  9. Vomitingbeing sick4%193
  10. Nauseafeeling sick3.7%175
  11. Dyspnoeashortness of breath3.5%169
  12. Blood pressure increaseda raised blood pressure reading3.5%166
  13. Dehydrationdehydration3.5%166
  14. Syncopefainting3.2%153
  15. Hyperkalaemiahigh blood potassium3.1%146
  16. Hypertensionhigh blood pressure3%144
  17. Coughcough3%141
  18. Atrial fibrillationan irregular heart rhythm2.8%135
  19. Hypokalaemialow blood potassium2.7%129
  20. Drug interactionan interaction between medicines2.7%128
  21. Renal impairmentreduced kidney function2.7%128
  22. Fatiguetiredness2.6%126
  23. Hyponatraemialow blood sodium2.6%122
  24. Headachehead pain2.5%120
  25. Renal failurekidney failure2.4%116
  26. Astheniaweakness or lack of energy2.3%109
  27. Metabolic acidosistoo much acid in the body fluids2.2%103
  28. Decreased appetitereduced appetite2.1%99

Top 30 of 889 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 24 drugs in the angiotensin 2 receptor blocker 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

Death4.4%209
Life-threatening6.6%313
Hospitalisation (initial or prolonged)56.1%2,680
Disability2.2%106
Congenital anomaly1.5%72
Other serious46%2,198
Not serious9.4%449

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 243,200 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%14
2 to 110.1%5
12 to 170%1
18 to 443.1%150
45 to 6416.8%803
65 to 7415.7%749
75 and over21.1%1,009
Age not given42.8%2,046

Patient sex

Female35.1%1,677
Male30.3%1,446
Not given34.6%1,654

Who reported

Physician26.4%1,261
Pharmacist6.4%304
Other health professional25.7%1,227
Lawyer0.5%23
Consumer or non-health professional31.8%1,521
Not given9.2%441

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 33.1% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hypertension1,97941.4%
Essential hypertension1453%
Blood pressure measurement400.8%
Blood pressure abnormal270.6%
Renin-angiotensin system inhibition170.4%
Blood pressure management130.3%

The indication field is filled in by the reporter and is often blank; shares are of all 4,777 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Olmesartan medoxomil reports
Amlodipine4589.6%
Aspirin3667.7%
Furosemide2214.6%
Pantoprazole2064.3%
Bisoprolol1984.1%
Allopurinol1894%
Hydrochlorothiazide1894%
Atorvastatin1593.3%
Carvedilol1242.6%
Bisoprolol fumarate1232.6%

Other products listed in reports where Olmesartan medoxomil 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

MeasureOlmesartan medoxomilAngiotensin 2 receptor blockerAll reports
Reports as suspect product4,777243,20020,646,523
Share of that pool—2%0%
Reports, latest 12 months169—1,332,454
Marked serious90.6%67.6%57.4%
Death recorded among outcomes, per 1,000 reports4411191
Hospitalisation recorded, per 1,000 reports561287213
Consumer-filed share31.8%54.2%45.8%
Top term, share of reportsWeight decreased 15.3%median 2%1.3%

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 angiotensin 2 receptor blocker class

DrugName typeReportsLatest 12 monthsMarked serious
Entrestobrand105,1731,28549.3%
Diovanbrand17,17913391.7%
Valsartangeneric16,93592383.8%
Losartangeneric15,1761,13780.1%
Candesartangeneric10,1971,48798.6%
Irbesartangeneric10,05569293.7%
Benicarbrand8,3707969.4%
Losartan potassiumgeneric6,72524673%
Exforgebrand6,26610895.3%
Diovan HCTbrand5,6703095.3%
Filsparibrand5,5982,90816.1%
Candesartan cilexetilgeneric5,31162297.6%
Cozaarbrand4,9136070.2%
Telmisartangeneric4,66635791.2%
Atacandbrand4,5974876.6%

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 Olmesartan medoxomil reports

How many adverse event reports has FDA received for Olmesartan medoxomil?

4,777 reports list Olmesartan medoxomil as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 169 of them arrived in the latest 12 months. Another 7,232 list it only as a concomitant medication.

What reactions are recorded in Olmesartan medoxomil reports?

weight decreased (15.3%), diarrhoea (10.6%), sprue-like enteropathy (7.6%), hypotension (6.7%) and gastrointestinal disorder (5.2%). 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 Olmesartan medoxomil was responsible.

How serious are the reports?

90.6% are marked serious by the reporter. Among the outcomes recorded, 4.4% of reports include death and 56.1% 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?

consumer or non-health professional (31.8%), physician (26.4%) and other health professional (25.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Olmesartan medoxomil rising?

169 reports in the 12 months to June 2026, up 24% from 136 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 Olmesartan medoxomil 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 Olmesartan medoxomil?

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 Olmesartan medoxomil as a suspect or interacting product; reports listing it only as a concomitant medication (7,232) 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.