Answer
Paroxetine is contraindicated with pimozide because it can increase pimozide levels, potentially through CYP2D6 inhibition, and pimozide has a narrow therapeutic index and can prolong the QT interval.
Sources for this answer
- Paroxetine 40 mg TabletsMorningside Healthcare Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 8Document updated
Sources checked