Difference between revisions of "Fluvoxamine-doxepine"

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| from = fluvoxamine  
 
| from = fluvoxamine  
 
| to = doxepin  
 
| to = doxepin  
| stop =  
+
| stop = {{StopSSRI,SNRI}}
{{stopFluvoxamine}}
 
 
| start =  
 
| start =  
* '''Day 1:''' simultaneously start administration of doxepin in a low dosage of 25 mg/day.  
+
* '''Day 1:''' start administration of doxepine in a low dosage of 25mg/day.  
* '''Day 8:''' stop administration of fluvoxamine and continue administration of doxepin only. If necessary, increase dosage of doxepin.
+
* '''Day 8:''' increase dosage of doxepine to a dosage of 75 mg/day.
 
| info =  
 
| info =  
* Fluvoxamine is an inhibitor of CYP1A2, CYP2C19 and CYP3A4 (moderate), which metabolize doxepin.
+
* fluvoxamine slows the metabolism of doxepine via CYP2C19 inhibition.  
* "Start low, go slow" is not required, but caution is necessary.}}
+
* {{SSCYPinh}}
 +
* {{TCAplasmalevelmonitoring}}

Revision as of 14:40, 30 June 2023

{{Drugswitch | from = fluvoxamine | to = doxepin | stop =

  • Day 1: Decrease dose to 50%
  • Day 8: Stop

| start =

  • Day 1: start administration of doxepine in a low dosage of 25mg/day.
  • Day 8: increase dosage of doxepine to a dosage of 75 mg/day.

| info =

  • fluvoxamine slows the metabolism of doxepine via CYP2C19 inhibition.
  • Due to CYP inhibition a longer period of time is needed to reach steady state concentration. Please keep in mind when monitoring plasma levels
  • Plasma monitoring for TCA's is advisable, because of plasma-reponse relations, genetic polymorphism and under or overdosing.[1]
  • (dutch) monografie.org tricyclische-antidepressiva