No wash-out period is needed.
* '''Day 1:''' start venlafaxine the next day in low dosage of 37,5 mg/day for one week.
* '''Day 821:''' increase dosage of venlafaxine to normal, 75 mg/day.* '''Day 28:''' gradually increase dosage of venlafaxine, if necessary.
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* Fluoxetine has a very long elimination time; phasing out fluoxetine is therefore not necessary. * {{theorSS}}}}