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Pozelimab Side Effects

The most commonly reported side effects of pozelimab include meningococcal infection, seizure, and drug effect less than expected, based on 4 FDA adverse event reports from 2023 to 2025.

Pozelimab side effects

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

1
Meningococcal Infection25.0%1
2
Seizure25.0%1
3
Drug Effect Less Than Expected25.0%1
4
Hepatitis25.0%1
5
Injection Site Reaction25.0%1

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

Report severity

100.0%Serious4 reports
25.0%Hospitalizations1 reports
25.0%Fatal1 reports

Seriousness is determined by the reporter, not by OpenClaim.

Pozelimab drug interactions

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

Taken alongside

1
Folic-acid50.0%2
2
Prednisolone50.0%2
3
Acetylcysteine25.0%1
4
Ferrous-sulfate25.0%1
5
Enoxaparin-sodium25.0%1
6
Vancomycin25.0%1
7
Meropenem25.0%1
8
Penicillin25.0%1
9
Albumin-human25.0%1
10
Venlafaxine25.0%1
11
Warfarin25.0%1
12
Ravulizumab-cwvz25.0%1
13
Doxycycline25.0%1
14
Cyclizine-lactate25.0%1

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 pozelimab side effects

75.0% of pozelimab adverse event reports involve female patients and 25.0% involve male patients. The largest age group is child at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female75.0%
Male25.0%
Unknown0.0%

Age group

< 20.0%
2–1150.0%
12–170.0%
18–6450.0%
65+0.0%

What is pozelimab used for

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

Chaple SyndromeParoxysmal Nocturnal Haemoglobinuria

Pozelimab brand names and reporting trend

Pozelimab is sold under the brand name Veopoz.

Brand names

Veopoz10

Quarterly reports (20232025)

202320242025

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

Taking pozelimab with another medication?

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