Reported Reactions

Drugs › Angiotensin converting enzyme inhibitor

Generic name

Captopril: adverse event reports filed with FDA

1,672 reports list it as a suspect or interacting product, 2004–2026. Class: Angiotensin converting enzyme inhibitor. Also reported as Captopril Tablets Usp, Captopril Tablets, Captopril Tablet.

1,672
reports as suspect product
0% of all reports · about 74 a year
47
reports, 12 months to June 2026
71 in the 12 months before
92.7%
marked serious by the reporter
83.4% across the class
8.7%
record death among outcomes, as reported
146 reports · not verified by FDA

Between January 2004 and June 2026, 1,672 adverse event reports received by FDA list captopril, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (7,868) are left out of every figure here.

In the 12 months to June 2026, 47 reports listed it, down 34% from 71 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 74 reports a year and 0% of the 20,646,523 reports in the database, and 1.6% of the reports for the angiotensin converting enzyme inhibitor 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 drug ineffective (10.1%), hypertension (8.7%) and hypotension (8.3%). A report can list several reactions, so shares add to more than 100%; 713 different terms appear across these reports. Drug ineffective is recorded in 10.1% of these reports, a larger share than in the median angiotensin converting enzyme inhibitor drug (7.2%).

92.7% of the reports are marked serious by the reporter (83.4% across the class); 8.7% record death among the outcomes and 52.6% record hospitalisation, as reported. 38.6% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (21.9%). 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

0713Jul 2021: 3Aug 2021: 5Sep 2021: 1Oct 2021: 13Nov 2021: 7Dec 2021: 22022Jan 2022: 4Feb 2022: 5Mar 2022: 6Apr 2022: 7May 2022: 10Jun 2022: 13Jul 2022: 6Aug 2022: 9Sep 2022: 9Oct 2022: 9Nov 2022: 3Dec 2022: 42023Jan 2023: 4Feb 2023: 3Mar 2023: 1Apr 2023: 7May 2023: 5Jun 2023: 10Jul 2023: 5Aug 2023: 7Sep 2023: 6Oct 2023: 0Nov 2023: 8Dec 2023: 122024Jan 2024: 9Feb 2024: 10Mar 2024: 8Apr 2024: 6May 2024: 7Jun 2024: 9Jul 2024: 11Aug 2024: 11Sep 2024: 4Oct 2024: 3Nov 2024: 2Dec 2024: 132025Jan 2025: 10Feb 2025: 1Mar 2025: 1Apr 2025: 6May 2025: 5Jun 2025: 4Jul 2025: 8Aug 2025: 4Sep 2025: 1Oct 2025: 1Nov 2025: 1Dec 2025: 52026Jan 2026: 3Feb 2026: 5Mar 2026: 5Apr 2026: 1May 2026: 1Jun 2026: 12

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

0911812004: 6220042005: 762006: 612007: 4420072008: 532009: 432010: 6120102011: 732012: 542013: 5520132014: 842015: 462016: 6620162017: 522018: 1812019: 12520192020: 1412021: 742022: 8520222023: 682024: 932025: 4720252026: 27

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Captopril reports recording the termmedian drug in angiotensin converting enzyme inhibitor

  1. Drug ineffectivethe medicine did not work as expected10.1%169
  2. Hypertensionhigh blood pressure8.7%146
  3. Hypotensionlow blood pressure8.3%139
  4. Nauseafeeling sick7.2%120
  5. Dyspnoeashortness of breath6.2%104
  6. Drug interactionan interaction between medicines6%101
  7. Condition aggravatedthe condition being treated got worse5.6%94
  8. Dizzinesslight-headedness or unsteadiness5%84
  9. Diarrhoealoose or frequent stools4.6%77
  10. Astheniaweakness or lack of energy4.5%76
  11. Headachehead pain4.3%72
  12. Coughcough4%67
  13. Hyponatraemialow blood sodium3.9%66
  14. Acute kidney injurysudden loss of kidney function3.8%63
  15. Blood pressure increaseda raised blood pressure reading3.6%61
  16. Off label useused for a purpose or in a way not on the label3.6%61
  17. Falla fall3.6%60
  18. Fatiguetiredness3.6%60
  19. Malaisegeneral feeling of being unwell3.6%60
  20. Drug hypersensitivityan allergic-type reaction to a medicine3.4%57
  21. Angioedemadeep swelling of skin or mucous membranes3.3%55
  22. Oedema peripheralswelling of the legs, ankles or hands3.1%52
  23. Restlessnessrestlessness3.1%52
  24. Dehydrationdehydration3%50
  25. Cognitive disorderproblems with thinking or memory2.9%49
  26. Vertigoa spinning sensation2.9%49
  27. Atrial fibrillationan irregular heart rhythm2.6%44
  28. Medication errora mistake in prescribing, dispensing or taking a medicine2.5%42
  29. Arthralgiajoint pain2.5%41
  30. Overdosea dose above the recommended amount2.5%41

Top 30 of 713 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 13 drugs in the angiotensin converting enzyme 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

Death8.7%146
Life-threatening15.2%254
Hospitalisation (initial or prolonged)52.6%879
Disability2.1%35
Congenital anomaly1.7%29
Other serious57.6%963
Not serious7.3%122

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 102,327 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 24.2%70
2 to 113.2%54
12 to 173%50
18 to 448.4%140
45 to 6421.9%367
65 to 7413.1%219
75 and over20.3%340
Age not given25.8%432

Patient sex

Female51.4%860
Male38.2%639
Not given10.3%173

Who reported

Physician27.4%458
Pharmacist7.2%121
Other health professional38.6%646
Lawyer0.1%1
Consumer or non-health professional19.6%327
Not given7.1%119

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 21.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hypertension52531.4%
Coronary artery disease291.7%
Scleroderma renal crisis231.4%
Blood pressure increased140.8%
Cardiac failure140.8%
Cardiac failure congestive110.7%

The indication field is filled in by the reporter and is often blank; shares are of all 1,672 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Captopril reports
Furosemide27416.4%
Amlodipine21713%
Hydrochlorothiazide1629.7%
Aspirin1549.2%
Omeprazole1187.1%
Digoxin1106.6%
Ramipril965.7%
Metoprolol955.7%
Spironolactone935.6%
Simvastatin835%

Other products listed in reports where Captopril 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

MeasureCaptoprilAngiotensin converting enzyme inhibitorAll reports
Reports as suspect product1,672102,32720,646,523
Share of that pool—1.6%0%
Reports, latest 12 months47—1,332,454
Marked serious92.7%83.4%57.4%
Death recorded among outcomes, per 1,000 reports8711891
Hospitalisation recorded, per 1,000 reports526476213
Consumer-filed share19.6%22.6%45.8%
Top term, share of reportsDrug ineffective 10.1%median 7.2%6.3%

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 converting enzyme inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Lisinoprilgeneric44,4371,59471.3%
Ramiprilgeneric37,2022,25095.6%
Enalaprilgeneric6,75429495.5%
Enalapril maleategeneric4,0877793.6%
Zestrilbrand1,92018171.9%
Quinaprilgeneric1,2311259.7%
Perindopril erbuminegeneric1,1663698.6%
Lotrelbrand1,0461379.2%
Quinapril hydrochloridegeneric9411989.3%
Benazepril hydrochloridegeneric7915767.6%
Vasotecbrand558270.6%
Lotensinbrand5226474.5%

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 Captopril reports

How many adverse event reports has FDA received for Captopril?

1,672 reports list Captopril as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 47 of them arrived in the latest 12 months. Another 7,868 list it only as a concomitant medication.

What reactions are recorded in Captopril reports?

drug ineffective (10.1%), hypertension (8.7%), hypotension (8.3%), nausea (7.2%) and dyspnoea (6.2%). 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 Captopril was responsible.

How serious are the reports?

92.7% are marked serious by the reporter. Among the outcomes recorded, 8.7% of reports include death and 52.6% 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 (38.6%), physician (27.4%) and consumer or non-health professional (19.6%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Captopril rising?

47 reports in the 12 months to June 2026, down 34% from 71 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 Captopril 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 Captopril?

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 Captopril as a suspect or interacting product; reports listing it only as a concomitant medication (7,868) 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.