Fluoxetine-mirtazapine
From Psychiatrienet
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Switch medication from fluoxetine to mirtazapine.[1] [2]
Stop fluoxetine - Gradually reduce dosage of fluoxetine to a maximum of 20 mg/ day, when this dosage is > 20 mg/day.
- When a dosage of 20 mg/day is reached, stop administration.
Start mirtazapineNo wash-out period is needed.
- Day 1: start mirtazapine the next day in low dosage of 15 mg/day for one week.
- Day 21: increase dosage of mirtazapine to normal, 30 mg/day.
More information- (Desmethyl)Fluoxetine has a very long elimination time; phasing out fluoxetine is therefore not necessary.
- Fluoxetine slows the metabolism of mirtazapine through CYP2D6.
- ↑ Switches are based on literature references on this page and expert opinions of the authors. The authors have used pharmacokinetic and receptor affinity properties to determine the switch schedules
- ↑ Stahl, S. M. (2013). Stahl's essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). Cambridge University Press.
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