| stop =
* '''Before day 0:''' gradually reduce dosage of dosulepine to a maximum of 75 mg/ day, when this dosage is > 75 mg/day.
* '''Day 1:''' reduce dosage of dosulepine to 30 25 mg/day.
* '''Day 8:''' stop administration of dosulepine .
| start =
No wash-out period is needed.
* '''Day 19:''' simultaneously start administration of trazodone in a dosage of 100-150 mg/day.* '''Day 816:''' continue only administration of trazodone. If necessary, increase the dosage of trazodone to a maximum of 400 mg/day.
| info =
* Occurrence of the serotonin syndrome is theoretically possilble, so caution is necessary.}}