Answer
Phenytoin, carbamazepine and rifampicin, potent CYP3A4 inducers, increase the oral clearance of ondansetron and decrease its blood concentrations.
Sources for this answer
- SETOFILM 4 mg Orodispersible FilmsNorgine Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 7Document updated
Sources checked