OpenClaim

Ublituximab Side Effects

The most commonly reported side effects of ublituximab include infusion related reaction, fatigue, and headache, based on 3,086 FDA adverse event reports from 2015 to 2025. 2.2% of reports found the drug to be ineffective.

Ublituximab side effects

Percentages show how often each reaction appears relative to total reports for ublituximab.

1
Infusion Related Reaction39.6%1,221
2
Fatigue6.2%192
3
Headache3.4%105
4
Malaise2.9%89
5
Pain2.9%88
6
Inappropriate Schedule Of Product Administration2.6%80
7
Multiple Sclerosis Relapse2.5%78
8
Asthenia2.3%72
9
Urinary Tract Infection2.3%72
10
Illness2.2%69
11
Drug Ineffective2.2%68
12
Pain In Extremity2.1%66
13
Nausea2.1%64
14
Product Dose Omission Issue2.0%62
15
Off Label Use2.0%62

These are voluntary reports and do not establish that ublituximab caused these reactions.

Report severity

19.9%Serious615 reports
11.2%Hospitalizations345 reports
1.4%Fatal44 reports

Seriousness is determined by the reporter, not by OpenClaim.

Ublituximab drug interactions

Other drugs that appear in adverse event reports alongside ublituximab. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Umbralisib-tosylate2.7%82
2
Ocrelizumab0.9%28
3
Rituximab0.8%24
4
Venetoclax0.7%22
5
Diphenhydramine0.5%15
6
Methylprednisolone0.4%13
7
Ibrutinib0.4%11
8
Obinutuzumab0.4%11
9
Bendamustine-hydrochloride0.4%11
10
Chlorambucil0.3%10
11
Doxorubicin-hydrochloride0.3%10
12
Prednisolone0.3%9
13
Vincristine-sulfate0.3%9
14
Cyclophosphamide0.3%9
15
Lenalidomide0.3%8

Taken alongside

1
Ergocalciferol2.7%83
2
Baclofen2.5%78
3
Gabapentin2.2%69
4
Acetaminophen2.0%62
5
Levothyroxine-sodium1.5%47
6
Diphenhydramine1.5%46
7
Cholecalciferol1.4%43
8
Duloxetine-hydrochloride1.2%38
9
Cyanocobalamin1.2%38
10
Acyclovir1.1%34
11
Dextroamphetamine1.1%34
12
Amphetamine1.0%32
13
Atorvastatin-calcium1.0%31
14
Ibuprofen0.9%28
15
Omeprazole0.9%28

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports ublituximab side effects

22.9% of ublituximab adverse event reports involve female patients and 8.1% involve male patients. The largest age group is adult at 87%. These figures reflect who reports side effects, not underlying risk.

Sex

Female22.9%
Male8.1%
Unknown69.0%

Age group

< 20.3%
2–110.0%
12–170.1%
18–6487.5%
65+12.1%

What is ublituximab used for

Conditions and purposes for which patients were taking ublituximab when the adverse event was reported.

Autoimmune DisorderB-cell LymphomaChronic Lymphocytic LeukaemiaChronic Lymphocytic LeukaemiaClinically Isolated SyndromeFollicular LymphomaLymphocytic LymphomaLymphomaLymphocytic LymphomaMantle Cell LymphomaMarginal Zone LymphomaMantle Cell LymphomaMultiple SclerosisMultiple Sclerosis RelapseMyasthenia Gravis

Showing 15 of 24 indications

Ublituximab brand names and reporting trend

Ublituximab is sold under the brand name Briumvi.

Brand names

Briumvi3,738

Quarterly reports (20152025)

201520242025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking ublituximab with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.