Acetyl L Carnitine Powder ADHD Naturopathic Clinic Acetyl L Carnitine as an Adjunctive Therapy in the Treatment of Attention Deficit Hyperactivity Disorder in Children and Adolescents: A Placebo Controlled Trial Child Psychiatry & Human Development Springer Nature Link L Carnitine Plus 20 Tablets Can L Tyrosine Help With ADHD Symptoms? In the double blind, placebo controlled, double crossover trial published in Prostaglandins, Leukotrienes & Essential Fatty Acids, boys diagnosed with ADHD were given acetyl L carnitine at 100 mg per kg of body weight per day, divided