The most commonly reported side effects of imetelstat include thrombocytopenia, neutropenia, and platelet count decreased, based on 176 FDA adverse event reports from 2013 to 2025.
Percentages show how often each reaction appears relative to total reports for imetelstat.
These are voluntary reports and do not establish that imetelstat caused these reactions.
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Other drugs that appear in adverse event reports alongside imetelstat. 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.
26.7% of imetelstat adverse event reports involve female patients and 44.9% involve male patients. The largest age group is elderly at 77%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking imetelstat when the adverse event was reported.
Imetelstat is sold under the brand name Rytelo.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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