Drug intelligence / Profile preview

divalproex + phenytoin

Development stage
Unknown
Lead developer
Abbott
Modality
Small Molecules
Administration
Oral, Intravenous
01

Overview

A combination of two anticonvulsant medications that interact significantly when used together. Divalproex sodium (valproic acid) can displace phenytoin from plasma protein binding sites, increasing free phenytoin levels while potentially inhibiting its metabolism. This interaction can lead to phenytoin toxicity despite normal total phenytoin levels, requiring careful monitoring and potential dosage adjustments.

02

Targets

ABAT (4-aminobutyrate aminotransferase)NMDAR (Glutamate receptor ionotropic, NMDA)NaV (Voltage-gated sodium channels)

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