| to = fluoxetine
| stop =
* Gradually reduce dosage of bupropion to a maximum of 150 mg/ day. * When a dosage of 150 mg/day is reached, stop administration.{{StopBupropion1}}
| start =
*''' Day 2:''' * Start fluoxetine the next day in normal dosage of 20 mg/day.
* ''' After 3 weeks:''' If necessary, increase the dosage gradually to 40-60 mg/day.
| info =
* No wash-out period is needed.
* Start fluoxetine the next day in normal dosage of 20 mg/day.
| info =
* Bupropion and its metabolites have long elimination times, so plasma concentrations will reduce gradually.
* Bupropion slows the metabolism of fluoxetine by CYP2D6.
* {{2D6NRI}}
{{reviewlowlevels}}
}}