| to = mirtazapine
| stop =
* '''Before day 0:''' gradually reduce dosage of nortriptyline to a maximum of 50 mg/day.* '''Day 1:''' reduce dosage of nortriptyline to 25 mg/day.* '''Day 3:''' reduce dosage of nortriptyline to 10 mg/day.{{TCAdecrease25p3d}}| start = {{StartAntidepressant}}Caution is necessary.| info =* '''Day 1:''' simultaneously start administration of Safe target dose mirtazapine in a normal dosage of 30 = 15 mg/day.* '''Day 8:''' stop administration of nortriptyline and continue administration of mirtazapine.}}
