Reaction

Lymphocyte Percentage Decreased reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,330 reports · 21 co-occurring drugs

As of the last recalculation, Lymphocyte Percentage Decreased appears in 1,330 FAERS reports alongside 21 co-occurring drug terms. The strongest observed disproportionality signal is ALEMTUZUMAB (PRR 247.7).

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
Alemtuzumab249247.7250.9
Dimenhydrinate82128.3129.3
Methylprednisolone Sodium Succinate11944.044.1
Methylprednisolone19826.226.2
Fingolimod Hcl11622.922.9
Cetirizine Hydrochloride Allergy4021.321.3
Cetirizine Hydrochloride Tablets4021.321.3
Cladribine914.714.8
Acyclovir9013.213.2
Baclofen6111.611.6
Ranitidine12510.810.8
Diroximel Fumarate810.610.6
Oxybutynin189.79.7
Misoprostol69.79.7
Crizotinib78.78.7
Dalfampridine378.38.3
Acetaminophen And Codeine67.77.7
Clozapine577.47.4
Cortisone Acetate45.15.1
Polatuzumab Vedotin34.84.8
Dimethyl Fumarate293.73.8

Related reactions

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