Switch medication from duloxetine to fluvoxamine.[1]
[2]
Stop duloxetine
- Before day 1: gradually reduce dosage of duloxetine to a maximum of 60 mg/ day.
- Day 1: reduce a dosage of 60 mg/day to 30 mg/day.
- Day 7: stop duloxetine.
Start fluvoxamine
- Day 10: start fluvoxamine 50 mg.
- Day 14: increase administration of fluvoxamine.
More information
- Fluvoxamine inhibits the metabolism of duloxetine through CYP1A2.[3]
- Occurrence of the serotonin syndrome is not likely, but theoretically possible, so caution is necessary.
- This switch is currently being reviewed.
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