Keywords: valproic acid, carnitine, ammonia (PubMed Search)
Posted: 7/15/2010 by Fermin Barrueto, MD
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Valproic Acid (Depakote) is a drug that uniquely has the ability to raise serum ammonia concentrations. It is able to do this without raising liver er enzymes and it can occur in overdose or at therapeutic levels. Do not think of this in the context of hepatic encephalopathy. This a metabolic derangement caused by VPA.
Perrott J, Murphy NG, Zed PJ. L-carnitine for acute valproic Acid overdose: a systematic review of published cases. Ann Pharmacother. 2010 Jul-Aug;44(7-8):1287-93. Epub 2010 Jun 29.
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