Reaction

Human Antichimeric Antibody Positive reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 335 reports · 20 co-occurring drugs

As of the last recalculation, Human Antichimeric Antibody Positive appears in 335 FAERS reports alongside 20 co-occurring drug terms. The strongest observed disproportionality signal is ANAKINRA (PRR 11,473.4).

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
Anakinra30211,473.411,687.4
Sulfasalazine3042,598.92,609.1
Tocilizumab3102,249.62,255.8
Abatacept3061,575.31,578.8
Infliximab3071,034.21,035.6
Triamcinolone Acetonide Ointment Usp, 0.05%139629.7633.5
Adalimumab-Fkjp186559.7561.9
Adalimumab-Aaty185541.2543.3
Adalimumab-Adaz187497.1498.9
Naproxen218491.9493.2
Triamcinolone Acetonide139477.1479.2
Naproxen Sodium248412.4413.1
Naproxen Sodium Tablet, Coated69398.5400.5
Naproxen Sodium, Coated Tablets69398.5400.5
Naproxen Sodium 220Mg69397.9399.9
Etanercept307370.3370.5
Methotrexate291320.5320.8
Hydroxychloroquine177311.2312.0
Hydroxychloroquine Sulfate177254.8255.3
Human Immunoglobulin G62228.9229.6

Related reactions

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