| to = mirtazapine
| stop =
* '''Before day 1:''' 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}}* '''Day 1:''' simultaneously start administration of mirtazapine in a normal dosage of 30 mg/day.| info =* '''Day 8:''' stop administration of nortriptyline and continue administration of Safe target dose mirtazapine.|info={{review}}15 mg
}}