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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

Histamine-1 Receptor Antagonist [EPC] — Common Side Effects

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Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Drug ineffective 30,268 11 1,808 3,821 2,229
Fatigue 14,283 10 2,706 4,004 2,919
Pain 12,211 10 2,224 3,797 2,638
Off label use 11,845 12 2,385 4,082 2,666
Treatment failure 10,936 11 1,443 1,672 1,493
Rheumatoid arthritis 9,708 5 2,437 3,286 2,755
Abdominal discomfort 9,662 9 2,183 3,073 2,534
Alopecia 9,261 9 2,117 2,939 2,485
Rash 9,062 10 2,389 3,121 2,481
Systemic lupus erythematosus 8,794 5 2,324 2,905 2,507
Headache 8,758 11 2,343 3,227 2,269
Hypersensitivity 8,708 10 2,243 2,762 2,245
Pemphigus 8,589 5 2,122 2,586 2,385
Somnolence 8,316 10 348 890 194
Pruritus 8,094 11 1,560 2,342 1,555
Glossodynia 7,949 5 2,309 2,610 2,388
Infusion related reaction 7,812 6 2,450 3,135 2,288
Product use issue 7,737 9 1,368 1,854 1,417
Swelling 7,413 9 2,148 2,820 2,366
Nausea 7,260 10 1,756 3,488 2,200
Contraindicated product administered 6,840 8 1,590 1,999 1,660
Hand deformity 6,812 3 2,290 2,630 2,399
Arthralgia 6,655 9 2,319 3,044 2,359
Arthropathy 6,601 5 1,993 2,671 2,242
Product use in unapproved indication 6,595 9 1,384 1,842 1,528
Drug intolerance 6,471 9 1,869 2,340 1,909
Joint swelling 6,455 8 2,338 2,660 2,357
Hepatic enzyme increased 6,451 6 2,475 2,608 2,380
Maternal exposure during pregnancy 6,422 9 1,726 2,315 1,969
Wound 6,413 4 2,179 2,490 2,327
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