| to = paroxetine
| 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 paroxetine in normal dosage of 20 mg/day.
* ''' After 3 weeks:''' If necessary increase dosage gradually to 30-50 mg/day.
| info =
* No wash-out period is needed.
* Start paroxetine the next day in normal dosage of 20 mg/day.
| info =
* Bupropion slows the metabolism of paroxetine by CYP2D6.
* Bupropion and its metabolites have long elimination times, so plasma concentrations will reduce gradually.
* {{2D6NRI}}
{{review}}
}}