Reaction

Immunisation Reaction reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 706 reports · 13 co-occurring drugs

As of the last recalculation, Immunisation Reaction appears in 706 FAERS reports alongside 13 co-occurring drug terms. The strongest observed disproportionality signal is HUMAN IMMUNOGLOBULIN G (PRR 88.5).

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
Human Immunoglobulin G5788.588.8
Diroximel Fumarate2050.951.0
Ciclesonide2044.544.6
Diphenhydramine Hydrochloride Capsule, Liquid Filled2535.735.8
Adrenalinum4433.333.3
Avapritinib1127.227.2
Ravulizumab1124.424.4
Epinephrine4622.122.1
Ocrelizumab4321.721.7
Cetirizine Hydrochloride Allergy1919.019.0
Cetirizine Hydrochloride Tablets1919.019.0
Peginterferon Beta-1A511.311.3
Erenumab-Aooe84.34.3

Related reactions

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