* '''Day 15:''' stop administration of doxepin.
| start =
* '''Day 15-28:''' a wash-out period of two weeks is necessary.
* '''Day 29:''' start administration of tranylcypromine in a low dosage of 20 mg/day for one week.
* '''Day 35:''' after this week the dosage of tranylcypromine can be increased if necessary.