An overview of the preclinical aspects of topiramate: pharmacology, pharmacokinetics, and mechanism of action.

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Shank RP, Gardocki JF, Streeter AJ, Maryanoff BE

An overview of the preclinical aspects of topiramate: pharmacology, pharmacokinetics, and mechanism of action.

Epilepsia. 2000;41 Suppl 1:S3-9.

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10768292 [ View in PubMed
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Abstract

In this overview, we discuss the discovery and development of topiramate (TPM) as an anticonvulsant, including notable aspects of its chemical, biologic, and pharmacokinetic properties. In particular, we highlight its anticonvulsant profile in traditional seizure tests and animal models of epilepsy and the results of recent electrophysiological and biochemical studies using cultured neurons that have revealed a unique combination of pharmacologic properties of TPM. Finally, we present a hypothesis for the mechanistic basis of the anticonvulsant activity of TPM, which proposes that TPM binds to certain membrane ion channel proteins at phosphorylation sites and thereby allosterically modulates channel conductance and secondarily inhibits protein phosphorylation.

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