| to = citalopram
| stop =
* '''Before day 1:''' gradually reduce dosage of dosulepine to a maximum of 75 mg/day.* '''Day 1:''' reduce dosage of dosulepine to 50 mg/day.* '''Day 3:''' reduce dosage of dosulepine to 25 mg/day.* '''Day 7:''' stop dosulepine{{stopDosulepine}}
| start =
* '''Day 89:''' start administration of citalopram in a normal dosage of 20 mg/day.
| info =
* Occurrence of serotonin syndrome is theoretically possible, so caution is necessary.{{theorSS}}
* Citalopram is a weak inhibitor of CYP2D6, which metabolizes dosulepine.
{{review}}
}}