Reaction

Allergy To Chemicals reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,229 reports · 54 co-occurring drugs

As of the last recalculation, Allergy To Chemicals appears in 1,229 FAERS reports alongside 54 co-occurring drug terms. The strongest observed disproportionality signal is METHYLPREDNISOLONE ACETATE (PRR 242.7).

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
Methylprednisolone Acetate	105	242.7	246.0
Trimethoprim	47	70.2	70.5
Meloxicam	134	43.7	43.8
Naproxen Sodium Tablet, Coated	31	39.7	39.8
Naproxen Sodium, Coated Tablets	31	39.7	39.8
Naproxen Sodium 220Mg	31	39.7	39.8
Esomeprazole Magnesium Capsule, Delayed Release	31	37.1	37.2
Esomeprazole Magnesium Delayed Release Capsules	31	37.1	37.2
Esomeprazole Magnesium Dihydrate	31	36.9	37.0
Diphenhydramine Hydrochloride Capsule, Liquid Filled	39	31.9	32.0
Amitriptyline Hydrochloride	32	31.7	31.7
Tofacitinib Citrate	23	30.3	30.3
Hydroxychloroquine Sulfate	138	28.8	28.8
Leflunomide	147	26.9	26.9
Tocilizumab	148	24.8	24.9
Granisetron Hydrochloride	14	23.0	23.0
Granisetron	14	22.9	22.9
Chlorhexidine Gluconate	12	22.5	22.5
Oxycodone And Acetaminophen Tablets	15	21.6	21.6
Dexlansoprazole	49	20.7	20.7
Human Immunoglobulin G	24	20.1	20.1
Thyroid, Porcine	12	19.3	19.3
Abatacept	138	18.9	18.9
Diclofenac	84	17.7	17.7
Adalimumab-Fkjp	46	17.4	17.4
Adalimumab-Aaty	46	17.1	17.1
Hydroxychloroquine	71	17.0	17.0
Omalizumab	80	16.9	16.9
Pantoprazole Sodium In 0.9% Sodium Chloride	56	16.0	16.0
Pantoprazole Sodium Injection	56	16.0	16.0
Adalimumab-Adaz	46	15.3	15.3
Amoxicillin	61	14.2	14.2
Diclofenac Potassium, Film Coated	7	14.2	14.2
Diclofenac Potassium Tablets	7	14.2	14.2
Sulfasalazine	62	14.1	14.1
Triamcinolone Acetonide Ointment Usp, 0.05%	19	13.9	14.0
Diclofenac Potassium	7	11.0	11.0
Oxycodone And Acetaminophen	15	11.0	11.0
Diclofenac Sodium	88	10.6	10.6
Triamcinolone Acetonide	19	10.6	10.6
Golimumab	50	10.3	10.3
Cortisone Acetate	7	9.7	9.7
Ranitidine Hydrochloride	27	8.6	8.6
Tofacitinib	84	8.2	8.2
Isopropyl Alcohol	15	7.6	7.6
Ethyl Alcohol	12	7.5	7.5
Certolizumab Pegol	50	7.5	7.5
Alcohol	16	7.1	7.1
Sulfur	3	6.0	6.0
Ranitidine	66	5.9	5.9
Vilazodone Hydrochloride	3	5.5	5.5
Benralizumab	5	4.2	4.2
Dupilumab	94	3.5	3.5
Adapalene	3	0.3	0.3

Related reactions

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