Table 8. Frequency, in absolute numbers, of the 10 most common drugs involved in potential C-interactions.
| Rank | Drug | Interaction frequency |
|---|---|---|
| 1. | Valproic acid | 797 |
| 2. | Lamotrigine | 750 |
| 3. | Carbamazepine | 391 |
| 4. | Azathioprine | 336 |
| 5. | Methotrexate | 293 |
| 6. | Mesalazine | 270 |
| 7. | Fluoxetine | 213 |
| 8. | Ipratropium | 192 |
| 9. | Sertraline | 191 |
| 10. | Topiramate | 190 |
| … | ||
| 13. | Phenobarbital | 157 |
| 32. | Cyclosporine | 59 |
Only drugs with total prescribing of at least 50 were included in the table. The rank of the top 3 drugs in Table 9 are given at the bottom of Table 8 if they are not among the top ten in this table.