The most commonly reported side effects of necitumumab include platelet count decreased, malignant neoplasm progression, and hypomagnesaemia, based on 565 FDA adverse event reports from 2010 to 2025.
Percentages show how often each reaction appears relative to total reports for necitumumab.
These are voluntary reports and do not establish that necitumumab caused these reactions.
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Other drugs that appear in adverse event reports alongside necitumumab. 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
Taken alongside
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.
17.9% of necitumumab adverse event reports involve female patients and 70.1% involve male patients. The largest age group is elderly at 66%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking necitumumab when the adverse event was reported.
Showing 15 of 44 indications
Necitumumab is sold under the brand name Portrazza.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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