Reaction
Rheumatoid Factor Negative reporting signals
As of the last recalculation, Rheumatoid Factor Negative appears in 175 FAERS reports alongside 9 co-occurring drug terms. The strongest observed disproportionality signal is LEFLUNOMIDE (PRR 1,245.1).
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 |
|---|---|---|---|
| Leflunomide | 151 | 1,245.1 | 1,246.9 |
| Tocilizumab | 138 | 676.6 | 677.5 |
| Abatacept | 137 | 538.3 | 538.8 |
| Hydroxychloroquine | 103 | 397.4 | 398.0 |
| Hydroxychloroquine Sulfate | 109 | 375.7 | 376.1 |
| Rosuvastatin Calcium | 55 | 338.2 | 338.9 |
| Sulfasalazine | 98 | 337.3 | 337.7 |
| Tofacitinib | 122 | 257.4 | 257.6 |
| Certolizumab Pegol | 72 | 123.4 | 123.5 |