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val·pro·ic acid val-.prō-ik- n a valeric-acid derivative C8H16O2 used as an anticonvulsant often in the form of its sodium salt C8H15NaO2 see DEPAKENE SODIUM VALPROATE
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val·pro·ic ac·id (val-proґik) [USP] a simple eight-carbon branched-chain fatty acid used as an anticonvulsant in the treatment of epileptic seizures, particularly absence seizures; administered orally.Medical dictionary. 2011.