Buspirone, lithium, meperidine, nefazodone, selegiline, serotonin agonists, sibutramine, selective serotonin reuptake inhibitors (e.g., fluoxetine, sertraline,
paroxetine, etc.), trazodone, tricyclic antidepressants, haloperidol, indinavir, phenobarbital, carbamazepine, phenytoin.
Concurrent use of MAO inhibitors or drugs with MAO inhibitor activity may result in serotonin syndrome; should not be used within two weeks of each other.