Reaction

Immunoglobulins Decreased reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,349 reports · 33 co-occurring drugs

As of the last recalculation, Immunoglobulins Decreased appears in 1,349 FAERS reports alongside 33 co-occurring drug terms. The strongest observed disproportionality signal is HUMAN IMMUNOGLOBULIN G (PRR 106.6).

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
Human Immunoglobulin G129106.6107.2
Ocrelizumab15342.842.9
Bendamustine Hcl2929.529.5
Diphenhydramine Hydrochloride Capsule, Liquid Filled3324.424.4
Liothyronine Sodium1221.421.5
Amphotericin B1721.221.2
Ofatumumab4421.121.1
Axicabtagene Ciloleucel1218.918.9
Blinatumomab1116.416.4
Adrenalinum4015.315.3
Carfilzomib2715.015.0
Valacyclovir3714.014.1
Diphenhydramine5313.413.4
Rituximab16213.313.3
Daratumumab3212.612.6
Fludarabine Phosphate3012.012.0
Ixazomib2212.012.0
Prochlorperazine Maleate711.811.8
Zonisamide1111.611.6
Ibrutinib5811.511.5
Acalabrutinib911.511.5
Obinutuzumab1211.311.4
Epinephrine419.99.9
Valacyclovir Hydrochloride449.99.9
Belimumab209.99.9
Polatuzumab Vedotin69.59.5
Thalidomide229.49.4
Siponimod46.96.9
Venetoclax235.85.8
Tapentadol Hydrochloride83.73.7
Rimegepant Sulfate33.73.7
Lenalidomide813.13.1
Pomalidomide203.03.0

Related reactions

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