Effectiveness of L carnitine Supplementation to Sertraline for Treatment of Major Depressive Disorder: A Double blind Randomized Placebo controlled Trial Global Journal of Medical Pharmaceutical and Biomedical Update Could a mitochondrial metabolite known as acetyl L carnitine (LAC) yield a new biomarker for depression and potential new therapies? Dr. Carla Nasca, an @nyugrossman assistant professor of psychiatry and of neuroscience and physiology, Frontiers Carnitine and Depression Study links depression to low blood levels of acetyl L carnitine L CARNITINE 1 GM 5 ML ( L CARNITINE ) 5 X 5 ML IV USE AMPOULES