Caution is necessary for at least four weeks.
* '''Day 1:''' start administration of dosulepine in a low dosage of 25 mg/day.
* '''Day 2114:''' increase dosage of dosulepine to 50 mg/day.
* '''Day 28:''' increase dosage of dosulepine to 100 mg/day.
| info =
* Fluoxetine slows and norfluoxetine slow the metabolism of dosulepine via CYP2D6. * Desmethylfluoxetine Norfluoxetine has a halflife of at least 1 week: it takes therefore 1 month for elemination.
* Start low, go slow for dosulepine.
}}