Reported Reactions

Drugs › Thiazide diuretic

Generic name

Lisinopril and hydrochlorothiazide: adverse event reports filed with FDA

1,636 reports list it as a suspect or interacting product, 2004–2026. Class: Thiazide diuretic. Also reported as Lisinopril/Hydrochlorothiazide, Lisinopril/ Hydrochlorothiazide, Lisinopril / Hydrochlorothiazide.

1,636
reports as suspect product
0% of all reports · about 73 a year
65
reports, 12 months to June 2026
37 in the 12 months before
71%
marked serious by the reporter
84% across the class
7.4%
record death among outcomes, as reported
121 reports · not verified by FDA

1,636 adverse event reports received by FDA list lisinopril and hydrochlorothiazide, a generic name as a suspect or interacting product, from February 2004 to June 2026. A further 6,322 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, 65 reports listed it, up 76% from 37 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 73 reports a year and 0% of the 20,646,523 reports in the database, and 4.9% of the reports for the thiazide diuretic 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 angioedema (14.9%), cough (9%) and dizziness (6.9%). A report can list several reactions, so shares add to more than 100%; 385 different terms appear across these reports. Angioedema is recorded in 14.9% of these reports, a larger share than in the median thiazide diuretic drug (0.3%).

71% of the reports are marked serious by the reporter (84% across the class); 7.4% record death among the outcomes and 38.3% record hospitalisation, as reported. 29.8% of the reports came from consumers, and the largest patient age group is 45 to 64 (36.5%). 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

01224Jul 2021: 7Aug 2021: 6Sep 2021: 2Oct 2021: 2Nov 2021: 3Dec 2021: 52022Jan 2022: 1Feb 2022: 6Mar 2022: 5Apr 2022: 2May 2022: 3Jun 2022: 1Jul 2022: 9Aug 2022: 3Sep 2022: 4Oct 2022: 3Nov 2022: 4Dec 2022: 12023Jan 2023: 6Feb 2023: 3Mar 2023: 1Apr 2023: 5May 2023: 7Jun 2023: 3Jul 2023: 6Aug 2023: 15Sep 2023: 3Oct 2023: 3Nov 2023: 1Dec 2023: 42024Jan 2024: 1Feb 2024: 1Mar 2024: 0Apr 2024: 2May 2024: 6Jun 2024: 5Jul 2024: 2Aug 2024: 7Sep 2024: 3Oct 2024: 7Nov 2024: 3Dec 2024: 02025Jan 2025: 5Feb 2025: 4Mar 2025: 1Apr 2025: 2May 2025: 0Jun 2025: 3Jul 2025: 5Aug 2025: 24Sep 2025: 8Oct 2025: 1Nov 2025: 4Dec 2025: 12026Jan 2026: 0Feb 2026: 3Mar 2026: 2Apr 2026: 3May 2026: 3Jun 2026: 11

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

01072142004: 1920042005: 172006: 312007: 6220072008: 962009: 1552010: 21420102011: 1642012: 1592013: 2120132014: 432015: 792016: 5120162017: 492018: 762019: 5420192020: 682021: 622022: 4220222023: 572024: 372025: 5820252026: 22

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Lisinopril and hydrochlorothiazide reports recording the termmedian drug in thiazide diuretic

  1. Angioedemadeep swelling of skin or mucous membranes14.9%243
  2. Coughcough9%148
  3. Dizzinesslight-headedness or unsteadiness6.9%113
  4. Drug ineffectivethe medicine did not work as expected6.2%102
  5. Dyspnoeashortness of breath5%81
  6. Nauseafeeling sick4.8%78
  7. Hypotensionlow blood pressure4.2%68
  8. Blood pressure increaseda raised blood pressure reading4%65
  9. Headachehead pain4%65
  10. Hypertensionhigh blood pressure4%65
  11. Fatiguetiredness3.9%64
  12. Completed suicidedeath by suicide3.5%57
  13. Hyponatraemialow blood sodium2.9%47
  14. Vomitingbeing sick2.8%45
  15. Rashskin rash2.7%44
  16. Diarrhoealoose or frequent stools2.6%43
  17. Acute kidney injurysudden loss of kidney function2.6%42
  18. Astheniaweakness or lack of energy2.6%42
  19. Malaisegeneral feeling of being unwell2.6%42
  20. Pruritusitching2.4%39
  21. Syncopefainting2.4%39
  22. Dehydrationdehydration2.3%38
  23. Feeling abnormalfeeling odd or not right2.2%36
  24. Toxicity to various agentspoisoning or toxic effect of one or more substances2.2%36
  25. Drug interactionan interaction between medicines2.1%35
  26. Product substitution issuea problem after switching products2.1%34
  27. Muscle spasmsmuscle cramps2%33
  28. Painpain, site not specified1.8%30

Top 30 of 385 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 7 drugs in the thiazide diuretic 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

Death7.4%121
Life-threatening11.6%189
Hospitalisation (initial or prolonged)38.3%626
Disability2.6%43
Congenital anomaly0.1%1
Other serious34.5%564
Not serious29%474

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 33,516 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 20.1%2
2 to 110%0
12 to 170%0
18 to 446.8%112
45 to 6436.5%597
65 to 7416.1%263
75 and over13%212
Age not given27.5%450

Patient sex

Female47.4%775
Male45.1%738
Not given7.5%123

Who reported

Physician16.8%275
Pharmacist26.7%437
Other health professional15.3%251
Lawyer0.2%3
Consumer or non-health professional29.8%487
Not given11.2%183

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 88% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hypertension88354%
Blood pressure abnormal493%
Blood pressure281.7%
Blood pressure increased140.9%
Blood pressure measurement90.6%
Essential hypertension60.4%

The indication field is filled in by the reporter and is often blank; shares are of all 1,636 reports.

In context

MeasureLisinopril and hydrochlorothiazideThiazide diureticAll reports
Reports as suspect product1,63633,51620,646,523
Share of that pool—4.9%0%
Reports, latest 12 months65—1,332,454
Marked serious71%84%57.4%
Death recorded among outcomes, per 1,000 reports748991
Hospitalisation recorded, per 1,000 reports383496213
Consumer-filed share29.8%26.6%45.8%
Top term, share of reportsAngioedema 14.9%median 0.3%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 thiazide diuretic class

DrugName typeReportsLatest 12 monthsMarked serious
Hydrochlorothiazidegeneric22,6391,29688.4%
Benicar HCTbrand5,0011275.9%
Hyzaarbrand1,6611580.6%
Atacand Hctbrand1,257375.6%
Losartan potassium and hydrochlorothiazidegeneric7051566.8%
Tribenzorbrand617666%

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 Lisinopril and hydrochlorothiazide reports

How many adverse event reports has FDA received for Lisinopril and hydrochlorothiazide?

1,636 reports list Lisinopril and hydrochlorothiazide as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 65 of them arrived in the latest 12 months. Another 6,322 list it only as a concomitant medication.

What reactions are recorded in Lisinopril and hydrochlorothiazide reports?

angioedema (14.9%), cough (9%), dizziness (6.9%), drug ineffective (6.2%) and dyspnoea (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 Lisinopril and hydrochlorothiazide was responsible.

How serious are the reports?

71% are marked serious by the reporter. Among the outcomes recorded, 7.4% of reports include death and 38.3% 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?

consumer or non-health professional (29.8%), pharmacist (26.7%) and physician (16.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Lisinopril and hydrochlorothiazide rising?

65 reports in the 12 months to June 2026, up 76% from 37 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 Lisinopril and hydrochlorothiazide 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 Lisinopril and hydrochlorothiazide?

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 Lisinopril and hydrochlorothiazide as a suspect or interacting product; reports listing it only as a concomitant medication (6,322) 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.