Difference between revisions of "Combining-Carbamazepine-Risperidone"

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{{Drugcombi
 
{{Drugcombi
| base = Carbamazepine
+
| base = carbamazepine
| add = Olanzapine
+
| add = risperidone
 
| info =  
 
| info =  
* Carbamazepine is principally metabolized by CYP3A4 (also CYP2C8), but is also a potent inducer of CYP1A2, CYP3A4 and UDP-glucuronosyltransferases.
+
*  
* Olanzapine is principally metabolized by CYP1A2 and CYP2D6.
 
 
| start =  
 
| start =  
* Add olanzapine according to the general dosing advice and increase dose based on clinical effect or serum concentration. <ref name=”medicatiebewaking”> Schalekamp T. et al, Interacties met Psychofarmaca, Stichting Health Base, Houten, 2002. </ref> <ref name=”bazire”> Bazire S, Pshychotropic Drug Directory 2007, HealthComm UK Limited, Aberdeen, 2007. </ref>
+
* Coadministration with carbamazepine may decrease the plasma concentrations of risperidone and its pharmacologically active metabolite, 9-hydroxyrisperidone.  
 +
* Risperidone should be given at higher dosage to control psychotic symptoms. <ref name="drugscom">
 +
{{Drugscominteract|risperidone-with-carbamazepine|risperidone|carbamazepine}}</ref>
 
| cave =  
 
| cave =  
* Carbamazepine can reduce olanzapine serum concentration, possible below therapeutic range. <ref> {{Pubmed|9860152|Lucas RA et al. A pharmacokinetic interaction between carbamazepine and olanzapine: observations on possible mechanism. Eur J Clin Pharmacol 1998;54:639-43}}</ref>
+
* Pharmacologic response and plasma risperidone levels should be monitored more closely whenever carbamazepine is added to or withdrawn from therapy. <ref name="aricarb"> {{Pubmed|19934718|Strack DK et al. Antipsychotic prescribing practices following withdrawal of concomitant carbamazepine. J Psychiatr Pract. 2009 Nov;15(6):442-8}}</ref>
 
}}
 
}}

Latest revision as of 10:58, 8 June 2010

Carbamazepine
Type moodstabilizer
Group anticonvulsant
links
ATC-code N03AF01
Medscape Carbamazepine
PubChem 2554
PubMed Carbamazepine
Drugs.com carbamazepine
Kompas (Dutch) Carbamazepine
Wikipedia Carbamazepine
Risperidone
Type antipsychotic
Group atypical AP
Other use moodstabilizer
links
ATC-code N05AX08
Medscape Risperidone
PubChem 5073
PubMed Risperidone
Drugs.com risperidone
Kompas (Dutch) Risperidone
Wikipedia Risperidone

Adding risperidone to carbamazepine.

Infobord.png General information
  • Carbamazepine is principally metabolized by CYP3A4, and is a potent inducer of CYP1A2, CYP2C9, CYP3A4 and UDP-glucuronosyltransferases.
  • Risperidone is principally metabolized by CYP2D6 to an active metabolite 9-OH-risperidone (paliperidone).
Eenrichtingbord.png Start risperidone
  • Coadministration with carbamazepine may decrease the plasma concentrations of risperidone and its pharmacologically active metabolite, 9-hydroxyrisperidone.
  • Risperidone should be given at higher dosage to control psychotic symptoms. [7]
Letopbord.png Cave
  • Pharmacologic response and plasma risperidone levels should be monitored more closely whenever carbamazepine is added to or withdrawn from therapy. [8]


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