Skip to content
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 H1 Receptor Antagonists [MoA] — Common Side Effects

Boost Your Natural Energy & Metabolism

Mitolyn — 6 exotic plants to unlock your body's fat-burning power. 90-day guarantee.

Try Mitolyn Now
Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Drug ineffective 31,139 12 1,809 3,831 2,238
Treatment failure 14,610 12 1,443 1,673 1,493
Fatigue 14,309 11 2,706 4,009 2,920
Pain 12,244 11 2,224 3,801 2,638
Off label use 11,883 12 2,384 4,084 2,668
Rheumatoid arthritis 9,708 5 2,437 3,286 2,755
Abdominal discomfort 9,669 10 2,183 3,073 2,534
Alopecia 9,276 10 2,117 2,941 2,485
Rash 9,084 10 2,389 3,130 2,486
Hypersensitivity 8,820 12 2,243 2,765 2,253
Systemic lupus erythematosus 8,794 5 2,324 2,905 2,507
Headache 8,783 11 2,343 3,227 2,269
Pemphigus 8,589 5 2,122 2,586 2,385
Somnolence 8,343 11 348 892 195
Pruritus 8,142 12 1,560 2,344 1,556
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 7,747 10 1,368 1,858 1,417
Swelling 7,422 10 2,148 2,822 2,366
Nausea 7,274 10 1,756 3,487 2,200
Contraindicated product administered 6,863 10 1,590 1,999 1,660
Hand deformity 6,812 3 2,290 2,630 2,399
Arthralgia 6,663 10 2,319 3,045 2,359
Product use in unapproved indication 6,633 10 1,384 1,850 1,528
Arthropathy 6,601 5 1,993 2,671 2,242
Drug intolerance 6,480 10 1,869 2,340 1,911
Dizziness 6,460 10 1,876 2,339 1,827
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
← Back to Histamine H1 Receptor Antagonists [MoA] Compare drugs in this class →