* '''Before day 0:''' gradually reduce dosage of amitriptyline to a maximum of 50 mg/day.
* '''Day 1:''' reduce dosage of amitriptyline to 25 mg/day.
* '''Day 38:''' reduce dosage of stop amitriptyline to 10 mg/day.
| start =
Caution is necessary.* '''Day 18:''' simultaneously start administration of mianserine in a low dosage of 30 mg/day.* '''Day 815:''' stop administration of amitriptyline and continue administration of mianserine. * If if necessary, increase dosage of mianserine. }}