Reported Reactions

Drugs

Product name as reported

Calonal: adverse event reports filed with FDA

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

751
reports as suspect product
0% of all reports · about 34 a year
14
reports, 12 months to June 2026
25 in the 12 months before
85.5%
marked serious by the reporter
57.4% across all reports
12.5%
record death among outcomes, as reported
94 reports · not verified by FDA

Between April 2004 and May 2026, 751 adverse event reports received by FDA list the product name "Calonal" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (8,322) are left out of every figure here.

In the 12 months to June 2026, 14 reports listed it, down 44% from 25 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 34 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 exposure during pregnancy (10.1%), hepatic function abnormal (7.7%) and pyrexia (6.4%). A report can list several reactions, so shares add to more than 100%; 204 different terms appear across these reports. Exposure during pregnancy is recorded in 10.1% of these reports, against 0.3% of all reports in the database.

85.5% of the reports are marked serious by the reporter; 12.5% record death among the outcomes and 48.5% record hospitalisation, as reported. 58.6% of the reports came from physicians, 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

01428Jul 2021: 5Aug 2021: 1Sep 2021: 1Oct 2021: 0Nov 2021: 1Dec 2021: 32022Jan 2022: 8Feb 2022: 28Mar 2022: 25Apr 2022: 25May 2022: 16Jun 2022: 10Jul 2022: 8Aug 2022: 7Sep 2022: 4Oct 2022: 4Nov 2022: 3Dec 2022: 102023Jan 2023: 4Feb 2023: 2Mar 2023: 3Apr 2023: 0May 2023: 0Jun 2023: 1Jul 2023: 4Aug 2023: 3Sep 2023: 3Oct 2023: 3Nov 2023: 3Dec 2023: 42024Jan 2024: 3Feb 2024: 4Mar 2024: 3Apr 2024: 0May 2024: 0Jun 2024: 4Jul 2024: 0Aug 2024: 1Sep 2024: 4Oct 2024: 2Nov 2024: 4Dec 2024: 42025Jan 2025: 4Feb 2025: 3Mar 2025: 0Apr 2025: 3May 2025: 0Jun 2025: 0Jul 2025: 2Aug 2025: 1Sep 2025: 0Oct 2025: 4Nov 2025: 0Dec 2025: 12026Jan 2026: 1Feb 2026: 2Mar 2026: 2Apr 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

0741482004: 420042005: 92006: 162007: 1820072008: 152009: 342010: 2820102011: 112012: 122013: 2420132014: 312015: 382016: 5120162017: 522018: 512019: 7220192020: 322021: 222022: 14820222023: 302024: 292025: 1820252026: 6

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Calonal reports recording the termall reports in the database

  1. Exposure during pregnancythe medicine was taken during pregnancy10.1%76
  2. Pyrexiafever6.4%48
  3. Diarrhoealoose or frequent stools3.9%29
  4. Rashskin rash3.7%28
  5. Interstitial lung diseasescarring or inflammation of lung tissue3.1%23
  6. Stevens-Johnson syndromea severe skin and mucous-membrane reaction3.1%23
  7. Nauseafeeling sick2.8%21
  8. Erythema multiformea skin reaction with target-shaped patches2.7%20
  9. Abnormal behaviourunusual behaviour2.5%19
  10. Decreased appetitereduced appetite2.5%19
  11. Alanine aminotransferase increasedraised liver enzyme (ALT)2.4%18
  12. Vomitingbeing sick2.3%17
  13. Toxic epidermal necrolysisa severe skin reaction with peeling2.1%16
  14. Anaemialow red blood cells2%15
  15. Aspartate aminotransferase increasedraised liver enzyme (AST)2%15
  16. Constipationconstipation2%15
  17. Malaisegeneral feeling of being unwell2%15
  18. Pneumonialung infection2%15
  19. Renal impairmentreduced kidney function2%15
  20. Off label useused for a purpose or in a way not on the label1.7%13
  21. Erythemaskin redness1.6%12
  22. Drug reaction with eosinophilia and systemic symptomsDRESS, a severe reaction with rash, fever and organ involvement1.5%11
  23. Urticariahives1.5%11

Top 30 of 204 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

Death12.5%94
Life-threatening8.1%61
Hospitalisation (initial or prolonged)48.5%364
Disability2.8%21
Congenital anomaly0.3%2
Other serious50.5%379
Not serious14.5%109

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 20.3%2
2 to 114%30
12 to 173.5%26
18 to 4413.2%99
45 to 6420.8%156
65 to 7418.9%142
75 and over17.7%133
Age not given21.7%163

Patient sex

Female47.1%354
Male38.7%291
Not given14.1%106

Who reported

Physician58.6%440
Pharmacist19.2%144
Other health professional9.7%73
Lawyer0%0
Consumer or non-health professional10.4%78
Not given2.1%16

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.4% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Pyrexia11114.8%
Pain324.3%
Influenza293.9%
Headache152%
Antipyresis131.7%
Cancer pain111.5%

The indication field is filled in by the reporter and is often blank; shares are of all 751 reports.

In context

MeasureCalonalAll reports
Reports as suspect product75120,646,523
Share of that pool—0%
Reports, latest 12 months141,332,454
Marked serious85.5%57.4%
Death recorded among outcomes, per 1,000 reports12591
Hospitalisation recorded, per 1,000 reports485213
Consumer-filed share10.4%45.8%
Top term, share of reportsExposure during pregnancy 10.1%0.3%

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."

Questions about Calonal reports

How many adverse event reports has FDA received for Calonal?

751 reports list Calonal as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 14 of them arrived in the latest 12 months. Another 8,322 list it only as a concomitant medication.

What reactions are recorded in Calonal reports?

exposure during pregnancy (10.1%), hepatic function abnormal (7.7%), pyrexia (6.4%), drug-induced liver injury (4.5%) and diarrhoea (3.9%). 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 Calonal was responsible.

How serious are the reports?

85.5% are marked serious by the reporter. Among the outcomes recorded, 12.5% of reports include death and 48.5% 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?

physician (58.6%), pharmacist (19.2%) and consumer or non-health professional (10.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Calonal rising?

14 reports in the 12 months to June 2026, down 44% from 25 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 Calonal 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 Calonal?

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 Calonal as a suspect or interacting product; reports listing it only as a concomitant medication (8,322) 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.