OpenPV Signal Explorer
FAERS disproportionality dashboard
Reaction

Lymphocytosis reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 2,120 reports · 54 co-occurring drugs

As of the last recalculation, Lymphocytosis appears in 2,120 FAERS reports alongside 54 co-occurring drug terms. The strongest observed disproportionality signal is IBRUTINIB (PRR 39.9).

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
Ibrutinib28539.940.0
Acalabrutinib3831.331.4
Obinutuzumab2917.517.6
Bendamustine Hcl2616.716.7
Acetylcysteine1515.715.8
Venetoclax8914.814.8
Ganciclovir1312.512.6
Ganciclovir Sodium1312.112.1
Gentamicin1511.311.3
Tretinoin910.910.9
Rifampicin1110.710.7
Gentamicin Sulfate1610.010.0
Alemtuzumab199.79.7
Ampicillin89.59.5
Ampicillin Sodium89.59.5
Carbamazepine639.59.5
Doxorubicin Hydrochloride319.49.5
Pyrazinamide99.49.5
Basiliximab119.29.2
Fludarabine Phosphate369.19.1
Zidovudine128.98.9
Vincristine Sulfate268.88.8
Olmesartan Medoxomil308.38.3
Cladribine88.28.2
Daspone88.18.1
Dapsone Gel, 5%88.18.1
Polatuzumab Vedotin88.18.1
Rituximab1608.08.0
Romiplostim127.97.9
Filgrastim297.77.7
Dapsone87.47.4
Oxazepam167.47.4
Ifosfamide156.96.9
Entecavir86.76.8
Clozapine836.76.7
Dasatinib256.76.7
Doxorubicin586.56.5
Valacyclovir276.46.4
Cyclophosphamide Injection, Solution1056.16.1
Cyclophosphamide1056.16.1
Cyclophosphamide For Injection1056.16.1
Diclofenac Potassium, Film Coated55.85.8
Diclofenac Potassium Tablets55.85.8
Bendamustine Hydrochloride75.85.8
Bleomycin Sulfate65.75.7
Cytarabine345.65.6
Nevirapine55.55.5
Gemcitabine205.05.0
Cisplatin364.64.6
Diclofenac Potassium54.64.6
Gemcitabine Hydrochloride224.14.1
Natalizumab693.83.8
Azacitidine For73.83.8
Ofatumumab113.33.3

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