| to = doxepin doxepine

* '''Day 1-3:''' start administration of doxepin the next day in a low dosage of 25 mg25mg/day.* '''Day 48:''' increase dosage of doxepin to 50 a dosage of 75 mg/day and continue slowly increasing the dosage depending on the condition of the patient. 

* Bupropion slows the metabolism of doxepin by via CYP2D6.* Caution is necessary at the start of administration of doxepin. {{RiskSeizureBupropionTCA}}* {{TCAplasmalevelmonitoring}}}}