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Efficacy of Levocarnitine Chloride on Sodium Valproate-induced Hyperammonemia in Elderly Patients in a Psychiatry Setting Takeya AOKI 1 , Mami NAKASHIMA 1,2 , Atsushi TOKURA 1 , Naotaka TSUCHIYA 1 1Furoukai Hospital, Ube, Japan 2Department of Neuroscience, Yamaguchi University Graduate School of Medicine Keyword: Ammonia , Carnitine , L-Cartin® , Mitochondria , Valproic acid pp.441-448
Published Date 2013/5/15
DOI https://doi.org/10.11477/mf.1405102447

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 Sodium valproate is an antiepileptic drug that is prescribed for a variety of conditions. However, it often induces hyperammonemia as one of its adverse events. It has been speculated that the drug decreases carnitine, which is an amino acid in the body, and reduces the function of the urea cycle. Carnitine tends to be deficient in elderly patients because of their decreased muscle mass, physiological function, and diet intake. Therefore, we should pay more attention to hyperammonemia in elderly patients than in young patients during sodium valproate therapy. The aim of this study was to evaluate the efficacy of levocarnitine for hyperammonemia. We examined whether blood ammonia concentrations were corrected when we administered levocarnitine chloride to elderly patients with mental disorders and sodium valproate-induced hyperammonemia. As a result, we observed that blood ammonia concentrations decreased in all patients. In addition, there was a positive correlation between blood ammonia concentrations at baseline and the dose of levocarnitine chloride.


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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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