L carnitine does not improve valproic acid poisoning management: a cohort study with toxicokinetics and concentration effect relationships Annals of Intensive Care Springer Nature Link Valproic Acid Induced Hyperammonemic Encephalopathy Antiepileptic Drugs and Liver Disease Pediatric Neurology Oral dosage forms of valproic acid marketed in the US (2,83) Download Table Not all carnitine does the same job. Acetyl L Carnitine is great for the brain, while L Carnitine Tartrate is better suited for fat metabolism and physique goals. Liquid forms can be effective, but Revisiting the Role of Carnitine in Heart Disease Through the Lens of the Gut Microbiota