Reported Reactions

Drugs

Product name as reported

Levaquin: adverse event reports filed with FDA

20,335 reports list it as a suspect or interacting product, 2004–2026.

20,335
reports as suspect product
0.1% of all reports · about 904 a year
99
reports, 12 months to June 2026
74 in the 12 months before
73.3%
marked serious by the reporter
57.4% across all reports
2.1%
record death among outcomes, as reported
432 reports · not verified by FDA

20,335 adverse event reports received by FDA list the product name "Levaquin" as reporters wrote it as a suspect or interacting product, from January 2004 to June 2026. A further 16,356 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, 99 reports listed it, up 34% from 74 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 904 reports a year and 0.1% 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 (12.1%), arthralgia (10.3%) and neuropathy peripheral (10.1%). A report can list several reactions, so shares add to more than 100%; 1,362 different terms appear across these reports. Drug hypersensitivity is recorded in 12.1% of these reports, against 0.9% of all reports in the database.

73.3% of the reports are marked serious by the reporter; 2.1% record death among the outcomes and 18.1% record hospitalisation, as reported. 54.7% of the reports came from consumers, and the largest patient age group is 45 to 64 (20.8%). 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

0815Jul 2021: 12Aug 2021: 14Sep 2021: 12Oct 2021: 10Nov 2021: 8Dec 2021: 152022Jan 2022: 5Feb 2022: 5Mar 2022: 4Apr 2022: 12May 2022: 8Jun 2022: 8Jul 2022: 9Aug 2022: 8Sep 2022: 8Oct 2022: 9Nov 2022: 7Dec 2022: 42023Jan 2023: 11Feb 2023: 8Mar 2023: 10Apr 2023: 6May 2023: 6Jun 2023: 5Jul 2023: 4Aug 2023: 9Sep 2023: 4Oct 2023: 7Nov 2023: 9Dec 2023: 62024Jan 2024: 5Feb 2024: 5Mar 2024: 6Apr 2024: 7May 2024: 9Jun 2024: 2Jul 2024: 7Aug 2024: 6Sep 2024: 10Oct 2024: 7Nov 2024: 11Dec 2024: 22025Jan 2025: 9Feb 2025: 3Mar 2025: 10Apr 2025: 4May 2025: 3Jun 2025: 2Jul 2025: 9Aug 2025: 9Sep 2025: 14Oct 2025: 6Nov 2025: 8Dec 2025: 132026Jan 2026: 13Feb 2026: 4Mar 2026: 8Apr 2026: 6May 2026: 4Jun 2026: 5

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

01,4932,9862004: 39820042005: 6482006: 7632007: 87020072008: 9432009: 1,0162010: 1,46520102011: 1,3902012: 8452013: 47720132014: 5382015: 2,9862016: 2,00920162017: 2,9532018: 9272019: 94920192020: 5532021: 2252022: 8720222023: 852024: 772025: 9020252026: 40

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Levaquin reports recording the termall reports in the database

  1. Drug hypersensitivityan allergic-type reaction to a medicine12.1%2,468
  2. Arthralgiajoint pain10.3%2,100
  3. Neuropathy peripheralnerve damage in hands or feet10.1%2,051
  4. Tendon rupturea torn tendon9.9%2,015
  5. Tendonitisinflammation of a tendon8.9%1,810
  6. Aortic aneurysma bulge in the main artery8.5%1,726
  7. Aortic dissection7.8%1,596
  8. Pain in extremitypain in an arm or leg7.5%1,526
  9. Painpain, site not specified6.4%1,311
  10. Tendon injury5.2%1,056
  11. Insomniadifficulty sleeping4.7%965
  12. Myalgiamuscle pain4.2%848
  13. Nauseafeeling sick4.1%833
  14. Anxietyanxiety3.8%770
  15. Gait disturbancedifficulty walking3.6%740
  16. Dizzinesslight-headedness or unsteadiness3.6%734
  17. Dyspnoeashortness of breath3.5%718
  18. Astheniaweakness or lack of energy3.5%713
  19. Rashskin rash3.5%709
  20. Headachehead pain3.4%698
  21. Paraesthesiatingling or pins and needles3.4%695
  22. Fatiguetiredness3.3%671
  23. Hypoaesthesianumbness3.2%643
  24. Depressionlow mood2.9%581
  25. Diarrhoealoose or frequent stools2.7%550
  26. Musculoskeletal painpain in muscles or bones2.5%500
  27. Drug ineffectivethe medicine did not work as expected2.4%480

Top 30 of 1,362 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

Death2.1%432
Life-threatening3%619
Hospitalisation (initial or prolonged)18.1%3,690
Disability10.3%2,102
Congenital anomaly0.1%12
Other serious55.8%11,337
Not serious26.7%5,426

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 20%9
2 to 110.1%18
12 to 170.3%55
18 to 4410.4%2,123
45 to 6420.8%4,235
65 to 748.3%1,680
75 and over6.6%1,346
Age not given53.4%10,869

Patient sex

Female54.2%11,015
Male26.4%5,377
Not given19.4%3,943

Who reported

Physician15.1%3,072
Pharmacist4.6%926
Other health professional12.7%2,573
Lawyer3.7%756
Consumer or non-health professional54.7%11,125
Not given9.3%1,883

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 93.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Sinusitis1,7248.5%
Pneumonia1,3436.6%
Bacterial infection1,0014.9%
Bronchitis9744.8%
Urinary tract infection8944.4%
Infection5292.6%

The indication field is filled in by the reporter and is often blank; shares are of all 20,335 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Levaquin reports
Cipro1,4507.1%
Prednisone1,0115%
Avelox8254.1%
Ciprofloxacin7033.5%
Aspirin4782.4%
Lisinopril3601.8%
Moxifloxacin3241.6%
Levofloxacin3221.6%
Lipitor2871.4%
Codeine2841.4%

Other products listed in reports where Levaquin 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

MeasureLevaquinAll reports
Reports as suspect product20,33520,646,523
Share of that pool—0.1%
Reports, latest 12 months991,332,454
Marked serious73.3%57.4%
Death recorded among outcomes, per 1,000 reports2191
Hospitalisation recorded, per 1,000 reports181213
Consumer-filed share54.7%45.8%
Top term, share of reportsDrug hypersensitivity 12.1%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 Levaquin reports

How many adverse event reports has FDA received for Levaquin?

20,335 reports list Levaquin as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 99 of them arrived in the latest 12 months. Another 16,356 list it only as a concomitant medication.

What reactions are recorded in Levaquin reports?

drug hypersensitivity (12.1%), arthralgia (10.3%), neuropathy peripheral (10.1%), tendon rupture (9.9%) and tendonitis (8.9%). 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 Levaquin was responsible.

How serious are the reports?

73.3% are marked serious by the reporter. Among the outcomes recorded, 2.1% of reports include death and 18.1% 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 (54.7%), physician (15.1%) and other health professional (12.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Levaquin rising?

99 reports in the 12 months to June 2026, up 34% from 74 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 Levaquin 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 Levaquin?

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 Levaquin as a suspect or interacting product; reports listing it only as a concomitant medication (16,356) 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.