Reported Reactions

Drugs

Generic name

Mycophenolate sodium: adverse event reports filed with FDA

1,938 reports list it as a suspect or interacting product, 2007–2026.

1,938
reports as suspect product
0% of all reports · about 101 a year
301
reports, 12 months to June 2026
312 in the 12 months before
98.2%
marked serious by the reporter
57.4% across all reports
15.9%
record death among outcomes, as reported
309 reports · not verified by FDA

Between April 2007 and June 2026, 1,938 adverse event reports received by FDA list mycophenolate sodium, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (1,358) are left out of every figure here.

In the 12 months to June 2026, 301 reports listed it, close to the 312 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 101 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 off label use (15.1%), drug ineffective (12.6%) and diarrhoea (7.3%). A report can list several reactions, so shares add to more than 100%; 802 different terms appear across these reports. Off label use is recorded in 15.1% of these reports, against 4.1% of all reports in the database.

98.2% of the reports are marked serious by the reporter; 15.9% record death among the outcomes and 40.7% record hospitalisation, as reported. 60.7% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (34.5%). 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

02651Jul 2021: 8Aug 2021: 6Sep 2021: 20Oct 2021: 20Nov 2021: 11Dec 2021: 232022Jan 2022: 17Feb 2022: 27Mar 2022: 24Apr 2022: 15May 2022: 18Jun 2022: 15Jul 2022: 20Aug 2022: 14Sep 2022: 13Oct 2022: 10Nov 2022: 27Dec 2022: 252023Jan 2023: 14Feb 2023: 15Mar 2023: 16Apr 2023: 9May 2023: 22Jun 2023: 9Jul 2023: 51Aug 2023: 11Sep 2023: 33Oct 2023: 17Nov 2023: 17Dec 2023: 122024Jan 2024: 19Feb 2024: 20Mar 2024: 29Apr 2024: 34May 2024: 24Jun 2024: 11Jul 2024: 44Aug 2024: 22Sep 2024: 35Oct 2024: 42Nov 2024: 20Dec 2024: 282025Jan 2025: 21Feb 2025: 22Mar 2025: 30Apr 2025: 12May 2025: 20Jun 2025: 16Jul 2025: 24Aug 2025: 40Sep 2025: 17Oct 2025: 32Nov 2025: 9Dec 2025: 212026Jan 2026: 30Feb 2026: 39Mar 2026: 20Apr 2026: 23May 2026: 20Jun 2026: 26

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

01643282007: 320072008: 132009: 1220092010: 62011: 720112012: 152013: 1520132014: 122015: 920152016: 322017: 6820172018: 872019: 14420192020: 1542021: 16020212022: 2252023: 22620232024: 3282025: 26420252026: 158

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Mycophenolate sodium reports recording the termall reports in the database

  1. Off label useused for a purpose or in a way not on the label15.1%293
  2. Drug ineffectivethe medicine did not work as expected12.6%245
  3. Diarrhoealoose or frequent stools7.3%141
  4. Arthralgiajoint pain7%136
  5. Product use in unapproved indicationused for a purpose not on the label6.7%130
  6. Nauseafeeling sick5.6%109
  7. Sepsisa severe body-wide response to infection4.4%86
  8. Fatiguetiredness4.2%82
  9. Haemoglobin decreasedlow haemoglobin4%78
  10. Pyrexiafever4%78
  11. Abdominal painstomach or belly pain4%77
  12. Leukopenialow white blood cells4%77
  13. Blood creatinine increasedraised creatinine, a kidney test3.9%76
  14. Pneumonialung infection3.8%74
  15. Coughcough3.7%71
  16. Rashskin rash3.7%71
  17. Acute kidney injurysudden loss of kidney function3.6%70
  18. Dyspnoeashortness of breath3.5%68
  19. Systemic lupus erythematosuslupus, an autoimmune disease3.5%68
  20. Headachehead pain3.3%63
  21. Pruritusitching3.1%60
  22. Vomitingbeing sick3.1%60
  23. Drug intolerancethe medicine was not tolerated3%59
  24. Deaththe patient died; cause not stated by this term2.9%57
  25. Anaemialow red blood cells2.9%56
  26. Lupus nephritis2.9%56
  27. Mouth ulcerationmouth ulcers2.8%55

Top 30 of 802 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

Death15.9%309
Life-threatening10.4%202
Hospitalisation (initial or prolonged)40.7%788
Disability1.2%24
Congenital anomaly0.4%8
Other serious79.8%1,547
Not serious1.8%34

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 20.2%3
2 to 111.7%32
12 to 172.6%50
18 to 4423.4%453
45 to 6434.5%668
65 to 7410.8%210
75 and over2.3%45
Age not given24.6%477

Patient sex

Female37.8%732
Male44.3%858
Not given18%348

Who reported

Physician24.7%478
Pharmacist1.7%32
Other health professional60.7%1,177
Lawyer0%0
Consumer or non-health professional11.7%227
Not given1.2%24

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 24.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Immunosuppressant drug therapy59830.9%
Immunosuppression1708.8%
Renal transplant1306.7%
Prophylaxis against transplant rejection1115.7%
Systemic lupus erythematosus693.6%
Liver transplant130.7%

The indication field is filled in by the reporter and is often blank; shares are of all 1,938 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Mycophenolate sodium reports
Tacrolimus1,09956.7%
Prednisone80641.6%
Prednisolone38720%
Methylprednisolone38419.8%
Mycophenolate mofetil35918.5%
Rituximab26113.5%
Cyclosporine21911.3%
Acetaminophen1718.8%
Methotrexate1688.7%
Azathioprine1628.4%

Other products listed in reports where Mycophenolate sodium 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

MeasureMycophenolate sodiumAll reports
Reports as suspect product1,93820,646,523
Share of that pool—0%
Reports, latest 12 months3011,332,454
Marked serious98.2%57.4%
Death recorded among outcomes, per 1,000 reports15991
Hospitalisation recorded, per 1,000 reports407213
Consumer-filed share11.7%45.8%
Top term, share of reportsOff label use 15.1%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 Mycophenolate sodium reports

How many adverse event reports has FDA received for Mycophenolate sodium?

1,938 reports list Mycophenolate sodium as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 301 of them arrived in the latest 12 months. Another 1,358 list it only as a concomitant medication.

What reactions are recorded in Mycophenolate sodium reports?

off label use (15.1%), drug ineffective (12.6%), diarrhoea (7.3%), arthralgia (7%) and product use in unapproved indication (6.7%). 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 Mycophenolate sodium was responsible.

How serious are the reports?

98.2% are marked serious by the reporter. Among the outcomes recorded, 15.9% of reports include death and 40.7% 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 (60.7%), physician (24.7%) and consumer or non-health professional (11.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Mycophenolate sodium rising?

301 reports in the 12 months to June 2026, close to the 312 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 Mycophenolate sodium 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 Mycophenolate sodium?

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 Mycophenolate sodium as a suspect or interacting product; reports listing it only as a concomitant medication (1,358) 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.