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Psychiatrienet β

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  • Valproate can inhibit carbamazepine metabolic pathways, resulting in raised carbamazepine-epoxide concentrations. [1] Valproate can also displace protein-bound carbamazepine and therefore increase the levels of free carbamazepine. This may result in neurotoxicity even when valproate levels are low.[2]
  • Carbamazepine induces metabolism of both itself and valproate via Cytochrome P450 3A3/4 system, which may decrease the serum concentrations of both drugs and increase the risk of relapse.[2]
  • Bernus et al. The mechanism of the carbamazepine-valproate interaction in humans. Br J Clin Pharmacol 1997;44:21
  • 2.0 2.1 Cite error: Invalid <ref> tag; no text was provided for refs named freeman