Reported Reactions

Drugs › Cephalosporin antibacterial

Generic name

Cefixime: adverse event reports filed with FDA

933 reports list it as a suspect or interacting product, 2004–2026. Class: Cephalosporin antibacterial.

933
reports as suspect product
0% of all reports · about 43 a year
86
reports, 12 months to June 2026
106 in the 12 months before
89.8%
marked serious by the reporter
89.1% across the class
3.8%
record death among outcomes, as reported
35 reports · not verified by FDA

Between November 2004 and June 2026, 933 adverse event reports received by FDA list cefixime, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (2,038) are left out of every figure here.

In the 12 months to June 2026, 86 reports listed it, down 19% from 106 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 43 reports a year and 0% of the 20,646,523 reports in the database, and 1.6% of the reports for the cephalosporin antibacterial 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 drug ineffective (14.9%), off label use (7.7%) and drug hypersensitivity (5.9%). A report can list several reactions, so shares add to more than 100%; 330 different terms appear across these reports. Drug ineffective is recorded in 14.9% of these reports, a larger share than in the median cephalosporin antibacterial drug (8%).

89.8% of the reports are marked serious by the reporter (89.1% across the class); 3.8% record death among the outcomes and 43.3% record hospitalisation, as reported. 46.7% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (21.5%). 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

01325Jul 2021: 12Aug 2021: 2Sep 2021: 7Oct 2021: 8Nov 2021: 7Dec 2021: 72022Jan 2022: 5Feb 2022: 4Mar 2022: 5Apr 2022: 4May 2022: 10Jun 2022: 15Jul 2022: 8Aug 2022: 11Sep 2022: 3Oct 2022: 3Nov 2022: 12Dec 2022: 42023Jan 2023: 13Feb 2023: 10Mar 2023: 7Apr 2023: 5May 2023: 5Jun 2023: 12Jul 2023: 6Aug 2023: 11Sep 2023: 3Oct 2023: 10Nov 2023: 5Dec 2023: 92024Jan 2024: 11Feb 2024: 3Mar 2024: 4Apr 2024: 7May 2024: 13Jun 2024: 4Jul 2024: 4Aug 2024: 15Sep 2024: 2Oct 2024: 12Nov 2024: 8Dec 2024: 92025Jan 2025: 5Feb 2025: 12Mar 2025: 11Apr 2025: 22May 2025: 3Jun 2025: 3Jul 2025: 10Aug 2025: 6Sep 2025: 11Oct 2025: 4Nov 2025: 25Dec 2025: 42026Jan 2026: 4Feb 2026: 4Mar 2026: 4Apr 2026: 3May 2026: 5Jun 2026: 6

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

0611212004: 120042005: 32007: 72008: 120082009: 22010: 72011: 1120112012: 102013: 142014: 1520142015: 282016: 232017: 2320172018: 572019: 1212020: 11020202021: 862022: 842023: 9620232024: 922025: 1162026: 262026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Cefixime reports recording the termmedian drug in cephalosporin antibacterial

  1. Drug ineffectivethe medicine did not work as expected14.9%139
  2. Off label useused for a purpose or in a way not on the label7.7%72
  3. Drug hypersensitivityan allergic-type reaction to a medicine5.9%55
  4. Pyrexiafever5.9%55
  5. Treatment failurethe treatment did not work5.8%54
  6. Erythemaskin redness5.3%49
  7. Abdominal painstomach or belly pain5.1%48
  8. Macular degenerationa disease of the central retina4.7%44
  9. Nauseafeeling sick4.2%39
  10. Drug intolerancethe medicine was not tolerated4.1%38
  11. Painpain, site not specified4%37
  12. Anaemialow red blood cells3.5%33
  13. Diarrhoealoose or frequent stools3.5%33
  14. Weight decreasedweight loss3.3%31
  15. Condition aggravatedthe condition being treated got worse3.2%30
  16. Acute kidney injurysudden loss of kidney function3.1%29
  17. Product use in unapproved indicationused for a purpose not on the label3.1%29
  18. Malaisegeneral feeling of being unwell3%28
  19. Headachehead pain2.9%27
  20. Vaginal infection2.7%25
  21. Clostridium difficile colitisa bowel infection with C. difficile2.6%24
  22. Urticariahives2.6%24
  23. Haematocheziablood in the stool2.4%22
  24. Hypothyroidismunderactive thyroid2.4%22
  25. Constipationconstipation2.3%21
  26. Hepatic enzyme abnormal2.3%21
  27. Stevens-Johnson syndromea severe skin and mucous-membrane reaction2.3%21

Top 30 of 330 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 17 drugs in the cephalosporin antibacterial 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

Death3.8%35
Life-threatening7.2%67
Hospitalisation (initial or prolonged)43.3%404
Disability2.5%23
Congenital anomaly0.5%5
Other serious68.2%636
Not serious10.2%95

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 57,006 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 21.8%17
2 to 116.8%63
12 to 173.5%33
18 to 4421.5%201
45 to 6416.6%155
65 to 7412.4%116
75 and over11.6%108
Age not given25.7%240

Patient sex

Female56.9%531
Male28.8%269
Not given14.3%133

Who reported

Physician27.3%255
Pharmacist9.2%86
Other health professional46.7%436
Lawyer0.3%3
Consumer or non-health professional14.4%134
Not given2%19

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 14.8% 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 infection9510.2%
Antibiotic therapy242.6%
Pyrexia161.7%
Chlamydial infection151.6%
Bronchitis131.4%
Infection121.3%

The indication field is filled in by the reporter and is often blank; shares are of all 933 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Cefixime reports
Acetaminophen10210.9%
Prednisone929.9%
Pantoprazole869.2%
Azithromycin818.7%
Aspirin747.9%
Amoxicillin677.2%
Humira667.1%
Calcium carbonate646.9%
Methotrexate616.5%
Metronidazole606.4%

Other products listed in reports where Cefixime 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

MeasureCefiximeCephalosporin antibacterialAll reports
Reports as suspect product93357,00620,646,523
Share of that pool—1.6%0%
Reports, latest 12 months86—1,332,454
Marked serious89.8%89.1%57.4%
Death recorded among outcomes, per 1,000 reports3813391
Hospitalisation recorded, per 1,000 reports433454213
Consumer-filed share14.4%11.7%45.8%
Top term, share of reportsDrug ineffective 14.9%median 8%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 cephalosporin antibacterial class

DrugName typeReportsLatest 12 monthsMarked serious
Ceftriaxonegeneric17,1551,29493.7%
Cephalexingeneric5,64747270.6%
Cefepimegeneric5,41950595%
Cefuroximegeneric5,07829393.9%
Cefazolingeneric4,19329392%
Ceftriaxone sodiumgeneric3,77931193.3%
Ceftazidimegeneric3,31624196.7%
Cefotaximegeneric2,21010498.1%
Cefuroxime axetilgeneric2,10017275.7%
Cefdinirgeneric1,6148350.3%
Cefazolin sodiumgeneric1,33119195.5%
Cefepime hydrochloridegeneric1,0215186.6%
Zerbaxabrand8911866.1%
Cefuroxime sodiumgeneric8655197.3%
Cefaclorgeneric7293878.9%

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 Cefixime reports

How many adverse event reports has FDA received for Cefixime?

933 reports list Cefixime as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 86 of them arrived in the latest 12 months. Another 2,038 list it only as a concomitant medication.

What reactions are recorded in Cefixime reports?

drug ineffective (14.9%), off label use (7.7%), drug hypersensitivity (5.9%), pyrexia (5.9%) and treatment failure (5.8%). 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 Cefixime was responsible.

How serious are the reports?

89.8% are marked serious by the reporter. Among the outcomes recorded, 3.8% of reports include death and 43.3% 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?

other health professional (46.7%), physician (27.3%) and consumer or non-health professional (14.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Cefixime rising?

86 reports in the 12 months to June 2026, down 19% from 106 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 Cefixime 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 Cefixime?

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 Cefixime as a suspect or interacting product; reports listing it only as a concomitant medication (2,038) 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.