| start =
* '''Day 1-7:''' Start venlafaxine with a wash-out period dosage of at least one week is necessary37,5 mg/day. * '''Day 8:''' start increase dosage of venlafaxine in to a normal dosage of 37,5 mg or 75 mg (slow release) /day. Increase the dose with about 25% of the target dose every 3 days
| info =
* By considering a wash-out period of one week (5 times the elimination time of bupropion and its metabolites) it is assured that all bupropion has left the body and no drug interactions occur. * Bupropion slows the metabolism of venlafaxine by CYP2D6.<ref> Kennedy et al, [http://www.ncbi.nlm.nih.gov/pubmed/11926715?ordinalpos=11&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum Combining bupropion SR with venlafaxine, paroxetine, or fluoxetine: a preliminary report on pharmacokinetic, therapeutic, and sexual dysfunction effects.]. J Clin Psychiatry 2002 March;63(3):181-6.</ref>
}}
