| to = citalopram
| stop =
* '''Before day 1:''' gradually reduce dosage of imipramine to a maximum of 75 mg/day.* '''Day 1:''' reduce dosage of imipramine to 50 mg/day.* '''Day 3:''' reduce dosage of imipramine to 25 mg/day.* '''Day 8:''' stop administration of imipramine.{{stopImipramine}}
| start =
* '''Day 1:''' simultaneously start administration of citalopram in a normal dosage of 20 mg/day.
* Citalopram is a weak inhibitor of CYP2D6, which metabolizes imipramine.
* {{theorSS}}
{{review}}
}}