Number of citations of the 10 most cited drugs or drug classes with their mean impact factor
| Rank | Drug | Number | Mean IF |
|---|---|---|---|
| 1 | Methotrexate | 56 | 3.26 |
| 2 | Corticosteroids | 28 | 3.19 |
| 3 | Gold salts | 14 | 3.21 |
| 4 | Sulphasalazine | 8 | 4.26 |
| 5 | Diphosphonate | 8 | 5.07 |
| 6 | Cyclosporine | 7 | 2.77 |
| 7 | Indomethacin | 6 | 2.24 |
| 8 | Cyclophosphamide | 5 | 4.31 |
| 9 | Calcium | 5 | 2.89 |
| 10 | Vitamin D | 4 | 1.61 |