Reported Reactions

Drugs › CD20-directed cytolytic antibody

Brand name · Rituximab-pvvr

Ruxience: adverse event reports filed with FDA

4,723 reports list it as a suspect or interacting product, 2017–2026. Class: CD20-directed cytolytic antibody.

4,723
reports as suspect product
0% of all reports · about 515 a year
807
reports, 12 months to June 2026
1,116 in the 12 months before
91.1%
marked serious by the reporter
77% across the class
9.5%
record death among outcomes, as reported
448 reports · not verified by FDA

4,723 adverse event reports received by FDA list the brand name Ruxience (rituximab-pvvr) as a suspect or interacting product, from May 2017 to June 2026. A further 257 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, 807 reports listed it, down 28% from 1,116 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 515 reports a year and 0% of the 20,646,523 reports in the database, and 1.5% of the reports for the CD20-directed cytolytic antibody class. 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 (45.2%), intentional product use issue (13.5%) and condition aggravated (12.5%). A report can list several reactions, so shares add to more than 100%; 1,001 different terms appear across these reports. Off label use is recorded in 45.2% of these reports, a larger share than in the median CD20-directed cytolytic antibody drug (7.8%).

91.1% of the reports are marked serious by the reporter (77% across the class); 9.5% record death among the outcomes and 24.3% record hospitalisation, as reported. 42.5% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (34.4%). 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

061122Jul 2021: 34Aug 2021: 29Sep 2021: 37Oct 2021: 46Nov 2021: 53Dec 2021: 472022Jan 2022: 43Feb 2022: 43Mar 2022: 54Apr 2022: 65May 2022: 63Jun 2022: 63Jul 2022: 46Aug 2022: 61Sep 2022: 44Oct 2022: 73Nov 2022: 73Dec 2022: 842023Jan 2023: 58Feb 2023: 68Mar 2023: 93Apr 2023: 83May 2023: 111Jun 2023: 82Jul 2023: 87Aug 2023: 101Sep 2023: 97Oct 2023: 114Nov 2023: 92Dec 2023: 862024Jan 2024: 122Feb 2024: 77Mar 2024: 102Apr 2024: 84May 2024: 104Jun 2024: 84Jul 2024: 99Aug 2024: 120Sep 2024: 69Oct 2024: 90Nov 2024: 85Dec 2024: 872025Jan 2025: 101Feb 2025: 101Mar 2025: 92Apr 2025: 95May 2025: 87Jun 2025: 90Jul 2025: 85Aug 2025: 70Sep 2025: 105Oct 2025: 87Nov 2025: 73Dec 2025: 552026Jan 2026: 52Feb 2026: 48Mar 2026: 52Apr 2026: 66May 2026: 56Jun 2026: 58

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

05621,1232017: 120172018: 120182020: 6620202021: 37520212022: 71220222023: 1,07220232024: 1,12320242025: 1,04120252026: 3322026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Ruxience reports recording the termmedian drug in cd20-directed cytolytic antibody

  1. Off label useused for a purpose or in a way not on the label45.2%2,136
  2. Intentional product use issuedeliberate use not as intended13.5%637
  3. Condition aggravatedthe condition being treated got worse12.5%590
  4. Fatiguetiredness7.9%371
  5. Deaththe patient died; cause not stated by this term7.7%362
  6. Dyspnoeashortness of breath7.2%341
  7. Covid-19COVID-19 infection7.2%339
  8. Inappropriate schedule of product administrationthe product was taken at the wrong times7.2%339
  9. Nauseafeeling sick6.8%321
  10. Headachehead pain6.8%320
  11. Pruritusitching6.7%317
  12. Throat irritationan irritated throat6.5%309
  13. Malaisegeneral feeling of being unwell6.2%292
  14. Painpain, site not specified6%283
  15. Coughcough5.8%275
  16. Pneumonialung infection5.2%245
  17. Blood pressure increaseda raised blood pressure reading4.9%233
  18. Product use issuea problem in how the product was used4.9%231
  19. Drug ineffectivethe medicine did not work as expected4.8%227
  20. Hypertensionhigh blood pressure4.7%223
  21. Dizzinesslight-headedness or unsteadiness4.6%217
  22. Arthralgiajoint pain4.3%203
  23. Astheniaweakness or lack of energy4.1%194
  24. Pyrexiafever3.6%171
  25. Rashskin rash3.6%170
  26. Erythemaskin redness3.6%168
  27. Nasopharyngitisa cold3.5%166
  28. Falla fall3.3%154
  29. Heart rate increaseda fast heart rate reading3.3%154

Top 30 of 1,001 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 12 drugs in the cd20-directed cytolytic antibody 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

Death9.5%448
Life-threatening2.6%121
Hospitalisation (initial or prolonged)24.3%1,150
Disability1.2%57
Congenital anomaly0%2
Other serious79.1%3,737
Not serious8.9%421

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 316,120 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 20%2
2 to 110.3%13
12 to 170.5%22
18 to 4415.6%739
45 to 6434.4%1,624
65 to 7425.4%1,199
75 and over18.2%859
Age not given5.6%265

Patient sex

Female63.6%3,004
Male33.2%1,566
Not given3.2%153

Who reported

Physician36.7%1,731
Pharmacist6.8%322
Other health professional42.5%2,009
Lawyer0%2
Consumer or non-health professional13.5%636
Not given0.5%23

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 14.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Rheumatoid arthritis1,80238.2%
Granulomatosis with polyangiitis80517%
Multiple sclerosis1052.2%
Glomerulonephritis membranous721.5%
Systemic lupus erythematosus651.4%
Microscopic polyangiitis571.2%

The indication field is filled in by the reporter and is often blank; shares are of all 4,723 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Ruxience reports
Prednisone1,23426.1%
Acetaminophen92419.6%
Diphenhydramine78816.7%
Methotrexate70715%
Methylprednisolone69014.6%
Folic acid3407.2%
Pantoprazole2926.2%
Amlodipine2635.6%
Tylenol2565.4%
Plaquenil2445.2%

Other products listed in reports where Ruxience 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

MeasureRuxienceCD20-directed cytolytic antibodyAll reports
Reports as suspect product4,723316,12020,646,523
Share of that pool—1.5%0%
Reports, latest 12 months807—1,332,454
Marked serious91.1%77%57.4%
Death recorded among outcomes, per 1,000 reports9512591
Hospitalisation recorded, per 1,000 reports243274213
Consumer-filed share13.5%28%45.8%
Top term, share of reportsOff label use 45.2%median 7.8%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."

Other drugs in the cd20-directed cytolytic antibody class

DrugName typeReportsLatest 12 monthsMarked serious
Rituximabgeneric155,57815,06895.8%
Ocrevusbrand52,2583,25349.1%
Rituxanbrand41,51579270.9%
Kesimptabrand29,2572,65838.3%
Obinutuzumabgeneric9,2681,03794.4%
Ocrelizumabgeneric6,93260063.9%
Gazyvabrand5,29451265.9%
Truximabrand4,63040072.3%
Ofatumumabgeneric2,9429797.9%
Ublituximabgeneric2,5101,29022.1%
Briumvibrand1,21341820.9%

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 Ruxience reports

How many adverse event reports has FDA received for Ruxience?

4,723 reports list Ruxience as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 807 of them arrived in the latest 12 months. Another 257 list it only as a concomitant medication.

What reactions are recorded in Ruxience reports?

off label use (45.2%), intentional product use issue (13.5%), condition aggravated (12.5%), fatigue (7.9%) and death (7.7%). 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 Ruxience was responsible.

How serious are the reports?

91.1% are marked serious by the reporter. Among the outcomes recorded, 9.5% of reports include death and 24.3% 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?

other health professional (42.5%), physician (36.7%) and consumer or non-health professional (13.5%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Ruxience rising?

807 reports in the 12 months to June 2026, down 28% from 1,116 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 Ruxience 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 Ruxience?

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 Ruxience as a suspect or interacting product; reports listing it only as a concomitant medication (257) 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.