Reaction

Basophil Count Increased reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 743 reports · 19 co-occurring drugs

As of the last recalculation, Basophil Count Increased appears in 743 FAERS reports alongside 19 co-occurring drug terms. The strongest observed disproportionality signal is RIBOCICLIB (PRR 42.5).

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
Ribociclib4542.542.5
Tranexamic Acid1031.931.9
Nilotinib3130.730.7
Cimetidine1029.529.5
Hydrocortisone Sodium Succinate927.127.2
Letrozole Tablets4225.925.9
Clozapine9825.025.1
Letrozole5124.824.9
Fulvestrant2521.921.9
Fexofenadine Hcl721.421.4
Hydroxyurea1520.320.3
Dutasteride413.813.9
Ruxolitinib3313.513.5
Deferasirox1212.912.9
Romiplostim611.211.3
Palbociclib329.89.8
Paliperidone78.58.5
Ravulizumab48.38.3
Dasatinib107.67.6

Related reactions

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