Difference between revisions of "Combining-Olanzapine-Carbamazepine"
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* This combination of drugs may have possible synergistic effects. However, the pharmacokinetic drug interactions will influence the plasma levels. Dose adaptation will be recommended for this combination. | * This combination of drugs may have possible synergistic effects. However, the pharmacokinetic drug interactions will influence the plasma levels. Dose adaptation will be recommended for this combination. | ||
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Adding carbamazepine to olanzapine.
General information- Olanzapine is principally metabolized by CYP1A2 and CYP2D6.
- Carbamazepine is principally metabolized by CYP3A4, and is a potent inducer of CYP1A2, CYP2C9, CYP3A4 and UDP-glucuronosyltransferases.
- This combination of drugs may have possible synergistic effects. However, the pharmacokinetic drug interactions will influence the plasma levels. Dose adaptation will be recommended for this combination.
Start carbamazepine- Consider alternative for carbamazepine, otherwise start carbamazepine according to the general dosing advice.
- Check clinical effect or olanzapine plasma concentration after 2 weeks and adapt dose if necessary. [6] [7]
Cave- Close clinical monitoring for evidence of altered olanzapine effect is recommended in patients receiving carbamazepine.
- ↑ 1.0 1.1 1.2 1.3 1.4 KNMP; Informatorium Medicamentorum 2023; Monografie "olanzapine" (Dutch)
Cite error: Invalid
<ref>tag; name "informatorium" defined multiple times with different content - ↑ 2.0 2.1 Farmacotherapeutisch Kompas; Toxicologie (dutch) Cite error: Invalid
<ref>tag; name "ftktox" defined multiple times with different content - ↑ Woods SW Chlorpromazine equivalent doses for the newer atypical antipsychotics; J Clin Psychiatry 2003;64:663-667
- ↑ WHO Collaborating Centre for Drug Statistics Methodology ATC=N03AF01
- ↑ Farmacotherapeutisch Kompas - carbamazepine (dutch)
- ↑ Schalekamp T. et al, Interacties met Psychofarmaca, Stichting Health Base, Houten, 2002.
- ↑ Bazire S, Psychotropic Drug Directory 2007, HealthComm UK Limited, Aberdeen, 2007.
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