Reported Reactions

Drugs

Product name as reported

Ceclor: adverse event reports filed with FDA

656 reports list it as a suspect or interacting product, 2004–2026.

656
reports as suspect product
0% of all reports · about 29 a year
10
reports, 12 months to June 2026
21 in the 12 months before
40.9%
marked serious by the reporter
57.4% across all reports
0.5%
record death among outcomes, as reported
3 reports · not verified by FDA

Between January 2004 and May 2026, 656 adverse event reports received by FDA list the product name "Ceclor" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (174) are left out of every figure here.

In the 12 months to June 2026, 10 reports listed it, down 52% from 21 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 29 reports a year and 0% of the 20,646,523 reports in the database. 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 drug hypersensitivity (71.2%), drug intolerance (18.3%) and infection (18%). A report can list several reactions, so shares add to more than 100%; 161 different terms appear across these reports. Drug hypersensitivity is recorded in 71.2% of these reports, against 0.9% of all reports in the database.

40.9% of the reports are marked serious by the reporter; 0.5% record death among the outcomes and 17.5% record hospitalisation, as reported. 34% of the reports came from consumers, and the largest patient age group is 45 to 64 (33.1%). 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

0510Jul 2021: 5Aug 2021: 0Sep 2021: 0Oct 2021: 0Nov 2021: 3Dec 2021: 02022Jan 2022: 2Feb 2022: 0Mar 2022: 1Apr 2022: 3May 2022: 4Jun 2022: 3Jul 2022: 0Aug 2022: 2Sep 2022: 2Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 1Feb 2023: 3Mar 2023: 3Apr 2023: 0May 2023: 0Jun 2023: 2Jul 2023: 0Aug 2023: 1Sep 2023: 3Oct 2023: 2Nov 2023: 1Dec 2023: 02024Jan 2024: 0Feb 2024: 3Mar 2024: 1Apr 2024: 3May 2024: 0Jun 2024: 0Jul 2024: 1Aug 2024: 1Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 22025Jan 2025: 10Feb 2025: 2Mar 2025: 1Apr 2025: 1May 2025: 0Jun 2025: 3Jul 2025: 0Aug 2025: 1Sep 2025: 0Oct 2025: 1Nov 2025: 0Dec 2025: 12026Jan 2026: 2Feb 2026: 4Mar 2026: 0Apr 2026: 0May 2026: 1Jun 2026: 0

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

0621232004: 820042005: 52006: 112007: 820072008: 52009: 72011: 120112012: 162013: 422014: 6120142015: 612016: 1232017: 6820172018: 682019: 562020: 2220202021: 232022: 172023: 1620232024: 112025: 202026: 72026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Ceclor reports recording the termall reports in the database

  1. Drug hypersensitivityan allergic-type reaction to a medicine71.2%467
  2. Drug intolerancethe medicine was not tolerated18.3%120
  3. Infectionan infection, type not specified18%118
  4. International normalised ratio fluctuation17.8%117
  5. Nauseafeeling sick13.4%88
  6. Vomitingbeing sick13.4%88
  7. Fatiguetiredness12.3%81
  8. Bloody discharge12.2%80
  9. Lyme disease11.9%78
  10. Hypersensitivityan allergic-type reaction9%59
  11. Drug ineffectivethe medicine did not work as expected8.8%58
  12. Hypoaesthesianumbness7.9%52
  13. Dizzinesslight-headedness or unsteadiness7.6%50
  14. Malaisegeneral feeling of being unwell7.6%50
  15. Pain in extremitypain in an arm or leg7.6%50
  16. Iron deficiency7.5%49
  17. Urticariahives6.1%40
  18. Rashskin rash4.6%30
  19. Dyspnoeashortness of breath2.7%18
  20. Pruritusitching2.7%18
  21. Abdominal painstomach or belly pain2.6%17
  22. Anaphylactic reactiona severe, sudden allergic reaction2.4%16
  23. Alopeciahair loss2.1%14

Top 30 of 161 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 share of all reports in the database; 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

Death0.5%3
Life-threatening3.4%22
Hospitalisation (initial or prolonged)17.5%115
Disability10.7%70
Congenital anomaly0%0
Other serious32.5%213
Not serious59.1%388

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 20,646,523 reports. 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 22.1%14
2 to 113.5%23
12 to 170.9%6
18 to 446.9%45
45 to 6433.1%217
65 to 7410.5%69
75 and over4.3%28
Age not given38.7%254

Patient sex

Female76.2%500
Male13.7%90
Not given10.1%66

Who reported

Physician32.3%212
Pharmacist0.6%4
Other health professional31.3%205
Lawyer0.5%3
Consumer or non-health professional34%223
Not given1.4%9

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 66.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Urinary tract infection50.8%
Pyrexia40.6%
Rheumatoid arthritis40.6%
Bronchitis30.5%
Nasopharyngitis30.5%
Bacterial infection20.3%

The indication field is filled in by the reporter and is often blank; shares are of all 656 reports.

In context

MeasureCeclorAll reports
Reports as suspect product65620,646,523
Share of that pool—0%
Reports, latest 12 months101,332,454
Marked serious40.9%57.4%
Death recorded among outcomes, per 1,000 reports591
Hospitalisation recorded, per 1,000 reports175213
Consumer-filed share34%45.8%
Top term, share of reportsDrug hypersensitivity 71.2%0.9%

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."

Questions about Ceclor reports

How many adverse event reports has FDA received for Ceclor?

656 reports list Ceclor as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 10 of them arrived in the latest 12 months. Another 174 list it only as a concomitant medication.

What reactions are recorded in Ceclor reports?

drug hypersensitivity (71.2%), drug intolerance (18.3%), infection (18%), international normalised ratio fluctuation (17.8%) and nausea (13.4%). 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 Ceclor was responsible.

How serious are the reports?

40.9% are marked serious by the reporter. Among the outcomes recorded, 0.5% of reports include death and 17.5% 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 (34%), physician (32.3%) and other health professional (31.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Ceclor rising?

10 reports in the 12 months to June 2026, down 52% from 21 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 Ceclor 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 Ceclor?

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 Ceclor as a suspect or interacting product; reports listing it only as a concomitant medication (174) 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.