Reported Reactions

Drugs › Calcineurin inhibitor immunosuppressant

Brand name · Cyclosporine

Sandimmune: adverse event reports filed with FDA

1,871 reports list it as a suspect or interacting product, 2004–2026. Class: Calcineurin inhibitor immunosuppressant.

1,871
reports as suspect product
0% of all reports · about 83 a year
7
reports, 12 months to June 2026
18 in the 12 months before
92.8%
marked serious by the reporter
79.1% across the class
22.3%
record death among outcomes, as reported
417 reports · not verified by FDA

1,871 adverse event reports received by FDA list the brand name Sandimmune (cyclosporine) as a suspect or interacting product, from January 2004 to June 2026. A further 678 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, 7 reports listed it, down 61% from 18 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 83 reports a year and 0% of the 20,646,523 reports in the database, and 0.9% of the reports for the calcineurin inhibitor immunosuppressant class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded pyrexia (8.5%), blood creatinine increased (7.4%) and death (5.4%). A report can list several reactions, so shares add to more than 100%; 660 different terms appear across these reports. Pyrexia is recorded in 8.5% of these reports, a larger share than in the median calcineurin inhibitor immunosuppressant drug (2.9%).

92.8% of the reports are marked serious by the reporter (79.1% across the class); 22.3% record death among the outcomes and 49.5% record hospitalisation, as reported. 43.9% of the reports came from physicians, and the largest patient age group is 45 to 64 (20%). 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

0611Jul 2021: 1Aug 2021: 3Sep 2021: 2Oct 2021: 1Nov 2021: 1Dec 2021: 32022Jan 2022: 4Feb 2022: 2Mar 2022: 2Apr 2022: 11May 2022: 4Jun 2022: 1Jul 2022: 1Aug 2022: 3Sep 2022: 3Oct 2022: 1Nov 2022: 1Dec 2022: 02023Jan 2023: 1Feb 2023: 2Mar 2023: 1Apr 2023: 3May 2023: 5Jun 2023: 4Jul 2023: 2Aug 2023: 1Sep 2023: 2Oct 2023: 3Nov 2023: 3Dec 2023: 42024Jan 2024: 2Feb 2024: 0Mar 2024: 1Apr 2024: 5May 2024: 1Jun 2024: 1Jul 2024: 1Aug 2024: 3Sep 2024: 5Oct 2024: 1Nov 2024: 0Dec 2024: 12025Jan 2025: 1Feb 2025: 4Mar 2025: 0Apr 2025: 1May 2025: 1Jun 2025: 0Jul 2025: 1Aug 2025: 0Sep 2025: 1Oct 2025: 0Nov 2025: 0Dec 2025: 12026Jan 2026: 2Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 2

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

01132252004: 12320042005: 1552006: 1142007: 10520072008: 2252009: 1642010: 18920102011: 2152012: 792013: 1220132014: 552015: 692016: 3620162017: 382018: 502019: 6320192020: 492021: 312022: 3320222023: 312024: 212025: 1020252026: 4

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Sandimmune reports recording the termmedian drug in calcineurin inhibitor immunosuppressant

  1. Pyrexiafever8.5%159
  2. Blood creatinine increasedraised creatinine, a kidney test7.4%139
  3. Deaththe patient died; cause not stated by this term5.4%101
  4. Renal failurekidney failure4.4%82
  5. Renal impairmentreduced kidney function4.3%80
  6. Drug interactionan interaction between medicines3.6%68
  7. Hypertensionhigh blood pressure3.5%65
  8. Sepsisa severe body-wide response to infection3.4%64
  9. Diarrhoealoose or frequent stools3.3%61
  10. Dyspnoeashortness of breath3.3%61
  11. Vomitingbeing sick3.2%59
  12. Nauseafeeling sick2.9%55
  13. Pneumonialung infection2.7%51
  14. Headachehead pain2.6%49
  15. Respiratory failurethe lungs could not supply enough oxygen2.4%45
  16. Abdominal painstomach or belly pain2.3%43
  17. Alanine aminotransferase increasedraised liver enzyme (ALT)2.3%43
  18. Coughcough2.1%40
  19. Aspartate aminotransferase increasedraised liver enzyme (AST)2.1%39
  20. Confusional stateconfusion2%38
  21. Rashskin rash2%37
  22. General physical health deteriorationgeneral decline in health1.9%36
  23. Malaisegeneral feeling of being unwell1.9%35

Top 30 of 660 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 11 drugs in the calcineurin inhibitor immunosuppressant 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

Death22.3%417
Life-threatening8.2%153
Hospitalisation (initial or prolonged)49.5%926
Disability3.2%60
Congenital anomaly0.2%4
Other serious46.6%871
Not serious7.2%135

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 206,378 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%18
2 to 114.3%80
12 to 172.7%51
18 to 4412.8%240
45 to 6420%374
65 to 748.1%152
75 and over2.9%55
Age not given48.2%901

Patient sex

Female41.8%783
Male53.2%996
Not given4.9%92

Who reported

Physician43.9%821
Pharmacist7.4%138
Other health professional20.6%385
Lawyer0.2%4
Consumer or non-health professional18.7%350
Not given9.2%173

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 27.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Renal transplant33818.1%
Heart transplant1055.6%
Liver transplant744%
Bone marrow transplant563%
Stem cell transplant532.8%
Psoriasis351.9%

The indication field is filled in by the reporter and is often blank; shares are of all 1,871 reports.

In context

MeasureSandimmuneCalcineurin inhibitor immunosuppressantAll reports
Reports as suspect product1,871206,37820,646,523
Share of that pool—0.9%0%
Reports, latest 12 months7—1,332,454
Marked serious92.8%79.1%57.4%
Death recorded among outcomes, per 1,000 reports22315391
Hospitalisation recorded, per 1,000 reports495324213
Consumer-filed share18.7%25.1%45.8%
Top term, share of reportsPyrexia 8.5%median 2.9%1.6%

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 calcineurin inhibitor immunosuppressant class

DrugName typeReportsLatest 12 monthsMarked serious
Tacrolimusgeneric95,1659,30193.5%
Cyclosporinegeneric38,6884,60994.1%
Prografbrand20,42741589.6%
Restasisbrand18,2436108.9%
Neoralbrand11,36313394.5%
Lupkynisbrand8,4672,44420.3%
Vevyebrand4,7943,5060.7%
Envarsusbrand3,77640784.6%
Cequabrand3,0415984.6%
Gengrafbrand5431359.7%

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 Sandimmune reports

How many adverse event reports has FDA received for Sandimmune?

1,871 reports list Sandimmune as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 7 of them arrived in the latest 12 months. Another 678 list it only as a concomitant medication.

What reactions are recorded in Sandimmune reports?

pyrexia (8.5%), blood creatinine increased (7.4%), death (5.4%), renal failure (4.4%) and renal impairment (4.3%). 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 Sandimmune was responsible.

How serious are the reports?

92.8% are marked serious by the reporter. Among the outcomes recorded, 22.3% of reports include death and 49.5% 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 (43.9%), other health professional (20.6%) and consumer or non-health professional (18.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Sandimmune rising?

7 reports in the 12 months to June 2026, down 61% from 18 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 Sandimmune 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 Sandimmune?

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 Sandimmune as a suspect or interacting product; reports listing it only as a concomitant medication (678) 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.