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Valproate (VPA) and its valproic acid, sodium valproate, and valproate semisodium forms are medications primarily used to treat epilepsy and bipolar disorder and prevent migraine headaches. They are useful for the prevention of seizures in those with absence seizures, partial seizures, and generalized seizures. They can be given intravenously or by mouth, and the tablet forms exist in both long- and short-acting formulations.
Common side effects of valproate include nausea, vomiting, sleepiness, and dry mouth. Serious side effects can include liver failure, and regular monitoring of liver function tests is therefore recommended. Other serious risks include pancreatitis and an increased suicide risk. Valproate is known to cause serious abnormalities in babies if taken during pregnancy, and as such it is not typically recommended for women of childbearing age who have migraines.
Valproate's precise mechanism of action is unclear. Proposed mechanisms include affecting GABA levels, blocking voltage-gated sodium channels, and inhibiting histone deacetylases. Valproic acid is a branched short-chain fatty acid (SCFA) made from valeric acid.
Valproate was first made in 1881 and came into medical use in 1962. It is on the World Health Organization's List of Essential Medicines and is available as a generic medication. It is marketed under the brand names Depakote, among others. In 2018, it was the 131st most commonly prescribed medication in the United States, with more than 5 million prescriptions.
referencePosted on 14 Sep 2024, this text provides information on Miscellaneous in Medical related to Medical. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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