| start =
Caution is necessary for at least four weeks.
* '''Day 1:''' start administration of nortriptyline in a low dosage of 20 25 mg/day.* '''Day 821:''' increase dosage of nortriptyline to 30 50 mg/day.* '''Day 1528:''' gradually increase dosage of nortriptyline to 50 75 mg/dayand more.
| info =
* Fluoxetine slows the metabolism of nortriptyline via CYP2D6.
* Start low, go slow for nortriptyline.* {{theorSS}}}}