The most commonly reported side effects of luspatercept include death, off label use, and haemoglobin decreased, based on 2,209 FDA adverse event reports from 2018 to 2025. 4.0% of reports found the drug to be ineffective.
Percentages show how often each reaction appears relative to total reports for luspatercept.
These are voluntary reports and do not establish that luspatercept caused these reactions.
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Other drugs that appear in adverse event reports alongside luspatercept. 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.
30.2% of luspatercept adverse event reports involve female patients and 41.1% involve male patients. The largest age group is elderly at 79%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking luspatercept when the adverse event was reported.
Showing 15 of 68 indications
Luspatercept is sold under the brand name Reblozyl.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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