Adverse reaction reports describe suspected side effects. A report does not mean the drug caused the event — co-medications, underlying disease and coincidence all contribute.
Window: 20 April 2025 – 20 April 2026
Total reports: 158,246
Most-reported reactions
Off Label Use — 34,114 reports (21.56%)
Drug Ineffective — 27,080 reports (17.11%)
Rheumatoid Arthritis — 16,092 reports (10.17%)
Pain — 14,147 reports (8.94%)
Fatigue — 13,509 reports (8.54%)
Pneumonia — 11,328 reports (7.16%)
Rash — 10,812 reports (6.83%)
Arthralgia — 10,755 reports (6.8%)
Drug Intolerance — 10,214 reports (6.45%)
Infusion Related Reaction — 10,195 reports (6.44%)