Reported Reactions

Drugs

Product name as reported

Seresta: adverse event reports filed with FDA

3,214 reports list it as a suspect or interacting product, 2004–2021.

3,214
reports as suspect product
0% of all reports · about 143 a year
0
reports, 12 months to June 2026
0 in the 12 months before
100%
marked serious by the reporter
57.4% across all reports
11.2%
record death among outcomes, as reported
359 reports · not verified by FDA

3,214 adverse event reports received by FDA list the product name "Seresta" as reporters wrote it as a suspect or interacting product, from January 2004 to September 2021. A further 3,924 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, 0 reports listed it, and none 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 143 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 coma (13.6%), fall (11%) and somnolence (10.9%). A report can list several reactions, so shares add to more than 100%; 558 different terms appear across these reports. Coma is recorded in 13.6% of these reports, against 0.2% of all reports in the database.

100% of the reports are marked serious by the reporter; 11.2% record death among the outcomes and 67.3% record hospitalisation, as reported. 40.8% of the reports came from physicians, and the largest patient age group is 75 and over (27.7%). 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

02039Jul 2021: 39Aug 2021: 38Sep 2021: 26Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 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

03366722004: 1320042005: 132006: 3320062007: 212008: 1620082009: 522010: 6520102011: 292012: 3120122013: 1112014: 14620142015: 1372016: 23120162017: 2452018: 50520182019: 6722020: 62420202021: 270

Reactions recorded in the reports

share of Seresta reports recording the termall reports in the database

  1. Coma13.6%438
  2. Falla fall11%352
  3. Somnolencedrowsiness10.9%349
  4. Toxicity to various agentspoisoning or toxic effect of one or more substances8.6%277
  5. Drug abusemisuse of a medicine5.8%188
  6. Hypotensionlow blood pressure4.9%157
  7. Confusional stateconfusion4.6%149
  8. Drug dependencedependence on a medicine4.3%139
  9. Suicide attempta suicide attempt4.3%138
  10. Rhabdomyolysismuscle breakdown3.8%121
  11. Acute kidney injurysudden loss of kidney function3.5%114
  12. Intentional overdosea deliberate overdose3%97
  13. Bradycardiaslow heart rate3%95
  14. Overdosea dose above the recommended amount3%95
  15. Malaisegeneral feeling of being unwell2.8%90
  16. Pneumonia aspirationlung infection from breathing in material2.8%90
  17. Foetal exposure during pregnancythe unborn baby was exposed to the medicine2.7%88
  18. Vomitingbeing sick2.5%79
  19. Off label useused for a purpose or in a way not on the label2.4%77
  20. Hyponatraemialow blood sodium2.3%74
  21. Drug interactionan interaction between medicines2.2%71
  22. Agitationrestlessness2%64
  23. Intentional product misusedeliberate use not as intended1.9%62
  24. Loss of consciousnesspassing out1.8%59

Top 30 of 558 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

Death11.2%359
Life-threatening14.7%471
Hospitalisation (initial or prolonged)67.3%2,162
Disability1.1%34
Congenital anomaly2.5%81
Other serious35.4%1,137
Not serious0%1

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 22.2%71
2 to 110.2%5
12 to 171.8%59
18 to 4421.2%680
45 to 6422.2%715
65 to 749.6%307
75 and over27.7%890
Age not given15.2%487

Patient sex

Female50.9%1,637
Male41.2%1,325
Not given7.8%252

Who reported

Physician40.8%1,312
Pharmacist12.8%412
Other health professional34.8%1,120
Lawyer0%0
Consumer or non-health professional10.3%331
Not given1.2%39

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.3% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Anxiety53116.5%
Depression2026.3%
Suicide attempt792.5%
Intentional overdose521.6%
Toxicity to various agents471.5%
Poisoning deliberate331%

The indication field is filled in by the reporter and is often blank; shares are of all 3,214 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Seresta reports
Kardegic32110%
Paracetamol3179.9%
Imovane2537.9%
Doliprane2447.6%
Zopiclone2066.4%
Tercian1915.9%
Theralene1825.7%
Valium1755.4%
Risperdal1745.4%
Furosemide1665.2%

Other products listed in reports where Seresta 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

MeasureSerestaAll reports
Reports as suspect product3,21420,646,523
Share of that pool—0%
Reports, latest 12 months01,332,454
Marked serious100%57.4%
Death recorded among outcomes, per 1,000 reports11291
Hospitalisation recorded, per 1,000 reports673213
Consumer-filed share10.3%45.8%
Top term, share of reportsComa 13.6%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."

Questions about Seresta reports

How many adverse event reports has FDA received for Seresta?

3,214 reports list Seresta as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 0 of them arrived in the latest 12 months. Another 3,924 list it only as a concomitant medication.

What reactions are recorded in Seresta reports?

coma (13.6%), fall (11%), somnolence (10.9%), toxicity to various agents (8.6%) and poisoning deliberate (6.1%). 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 Seresta was responsible.

How serious are the reports?

100% are marked serious by the reporter. Among the outcomes recorded, 11.2% of reports include death and 67.3% 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?

physician (40.8%), other health professional (34.8%) and pharmacist (12.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Seresta rising?

0 reports in the 12 months to June 2026, and none 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 Seresta 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 Seresta?

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 Seresta as a suspect or interacting product; reports listing it only as a concomitant medication (3,924) 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.