* '''Day 815:''' simultaneously start administration of nortriptyline in a low dosage of 25 mg/day. * '''Day 1522:''' stop administration of paroxetine and only continue nortriptyline in a dosage of 50 mg/day.* “Start low, go slow” is not required, but caution is necessary.
| info = Paroxetine slows the metabolism of nortriptyline via CYP2D6. }}