Reaction

Pseudopolyp reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 355 reports · 5 co-occurring drugs

As of the last recalculation, Pseudopolyp appears in 355 FAERS reports alongside 5 co-occurring drug terms. The strongest observed disproportionality signal is MEPERIDINE HYDROCHLORIDE (PRR 58.7).

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.

Drug	Co-reports	PRR	ROR
Meperidine Hydrochloride	9	58.7	58.8
Infliximab-Dyyb	27	58.5	58.6
Midazolam Hydrochloride	21	48.5	48.6
Vedolizumab	53	42.2	42.3
Isotretinoin	26	33.2	33.2

Related reactions

Drug Ineffective
Off Label Use
Death
Nausea
Fatigue

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