Reaction

Hypereosinophilic Syndrome reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 525 reports · 4 co-occurring drugs

As of the last recalculation, Hypereosinophilic Syndrome appears in 525 FAERS reports alongside 4 co-occurring drug terms. The strongest observed disproportionality signal is MEPOLIZUMAB (PRR 52.9).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.
DrugCo-reportsPRRROR
Mepolizumab5952.953.0
Benralizumab1734.834.8
Imatinib Mesylate1217.417.4
Dupilumab575.15.1

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.