| Carbenicillin, piperacillin, ticarcillin | |
| Barbiturate, carbamazepine, phenytoin, felbamate | |
| Pravastatin, low dose atorvastatin, or low dose rosuvastatin-except with indinavir or saquinavir | |
| 5HT-3 blockers, alfuzosin, apomorphine, atazanavir, azole antifungals, chloroquine, droperidol, galantamine, methadone, pentamidin, ritonavir |