Product name as reported
Calcium Ascorbate: adverse event reports filed with FDA
1,385 reports list it as a suspect or interacting product, 2012–2026.
- 1,385
- reports as suspect product
- 0% of all reports · about 99 a year
- 532
- reports, 12 months to June 2026
- 503 in the 12 months before
- 99.9%
- marked serious by the reporter
- 57.4% across all reports
- 81.9%
- record death among outcomes, as reported
- 1,135 reports · not verified by FDA
1,385 adverse event reports received by FDA list the product name "Calcium Ascorbate" as reporters wrote it as a suspect or interacting product, from July 2012 to June 2026. A further 705 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, 532 reports listed it, close to the 503 of 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 99 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 MedDRA terms listed most often are off label use (45.6%), maternal exposure during pregnancy (45.1%) and infusion related reaction (42.7%). A report can list several reactions, so shares add to more than 100%; 406 different terms appear across these reports. Off label use is recorded in 45.6% of these reports, against 4.1% of all reports in the database.
99.9% of the reports are marked serious by the reporter; 81.9% record death among the outcomes and 79.7% record hospitalisation, as reported. 92.3% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (59.1%). 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
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
2026 covers reports received through June 2026 only.
Reactions recorded in the reports
share of Calcium Ascorbate reports recording the termall reports in the database
- Off label useused for a purpose or in a way not on the label45.6%632
- Maternal exposure during pregnancythe mother took the medicine during pregnancy45.1%624
- Infusion related reactiona reaction during or soon after an infusion42.7%592
- Confusional stateconfusion41%568
- Rheumatoid arthritisrheumatoid arthritis, an inflammatory joint disease40.7%564
- Hypertensionhigh blood pressure40.6%563
- General physical health deteriorationgeneral decline in health40.4%560
- Psoriatic arthropathy40.4%559
- Drug ineffectivethe medicine did not work as expected40.1%555
- Glossodynia39.7%550
- Bursitis39.4%546
- Hepatic enzyme increasedraised liver enzymes39.4%545
- Systemic lupus erythematosuslupus, an autoimmune disease39.4%545
- Arthropathy38.9%539
- Pemphigus38.8%538
- Pericarditisinflammation of the sac around the heart38.4%532
- C-reactive protein increased38.1%527
- Blood cholesterol increasedraised cholesterol37.8%524
- Drug intolerancethe medicine was not tolerated37.6%521
- Painpain, site not specified37.3%517
- Type 2 diabetes mellitustype 2 diabetes37%512
- Folliculitis36.9%511
- Hand deformity36.5%506
- Arthralgiajoint pain36.4%504
- Astheniaweakness or lack of energy36.4%504
- Swellingswelling36.4%504
- Breast cancer stage III36.3%503
- Synovitis36.2%501
- Duodenal ulcer perforation35.5%492
Top 30 of 406 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
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
Patient sex
Who reported
Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.1% of reports give the United States as the country of the event or reporter.
Reason for use recorded
| Indication as recorded (MedDRA) | Reports | Share |
|---|---|---|
| Foetal exposure during pregnancy | 66 | 4.8% |
| Vitamin supplementation | 26 | 1.9% |
| Rheumatoid arthritis | 23 | 1.7% |
The indication field is filled in by the reporter and is often blank; shares are of all 1,385 reports.
In context
| Measure | Calcium Ascorbate | All reports |
|---|---|---|
| Reports as suspect product | 1,385 | 20,646,523 |
| Share of that pool | — | 0% |
| Reports, latest 12 months | 532 | 1,332,454 |
| Marked serious | 99.9% | 57.4% |
| Death recorded among outcomes, per 1,000 reports | 819 | 91 |
| Hospitalisation recorded, per 1,000 reports | 797 | 213 |
| Consumer-filed share | 3.2% | 45.8% |
| Top term, share of reports | Off label use 45.6% | 4.1% |
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 Calcium Ascorbate reports
How many adverse event reports has FDA received for Calcium Ascorbate?
1,385 reports list Calcium Ascorbate as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 532 of them arrived in the latest 12 months. Another 705 list it only as a concomitant medication.
What reactions are recorded in Calcium Ascorbate reports?
off label use (45.6%), maternal exposure during pregnancy (45.1%), infusion related reaction (42.7%), confusional state (41%) and rheumatoid arthritis (40.7%). 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 Calcium Ascorbate was responsible.
How serious are the reports?
99.9% are marked serious by the reporter. Among the outcomes recorded, 81.9% of reports include death and 79.7% 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 (92.3%), physician (3.8%) and consumer or non-health professional (3.2%). Most reports reach FDA through the manufacturer, which must forward reports it receives.
Are reports for Calcium Ascorbate rising?
532 reports in the 12 months to June 2026, close to the 503 of 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 Calcium Ascorbate 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 Calcium Ascorbate?
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 Calcium Ascorbate as a suspect or interacting product; reports listing it only as a concomitant medication (705) 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.