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Clinical Trial
. 2002 Jul;67(1):33-8.
doi: 10.1054/plef.2002.0378.

Efficacy of Carnitine in the Treatment of Children With Attention-Deficit Hyperactivity Disorder

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Clinical Trial

Efficacy of Carnitine in the Treatment of Children With Attention-Deficit Hyperactivity Disorder

L J Van Oudheusden et al. Prostaglandins Leukot Essent Fatty Acids. .

Abstract

To determine safety and the efficacy of carnitine treatment in children with attention-deficit hyperactivity disorder (ADHD). The ADHD behavior was observed by parents completing the Child Behavior Checklist (CBCL) and by teachers completing the Conners teacher-rating score, in a randomized, double-blind, placebo-controlled double-crossover trial. In 13/24 boys receiving carnitine, home behavior improved as assessed with the CBCL total score (P < 0.02). In 13/24 boys, school behavior improved as assessed with the Conners teacher-rating score (P < 0.05). Before treatment, the CBCL total and sub-scores were significantly different from those of normal Dutch boys (P < 0.0001). Responders showed a significant improvement of the CBCL total scores compared to baseline (P < 0.0001). In the majority of boys no side effects were seen. At baseline and after carnitine treatment, responders showed higher levels of plasma-free carnitine (P < 0.03) and acetylcarnitine (P < 0.05). Compared to baseline, the carnitine treatment caused in the responsive patients a decrease of 20-65% (8-48 points) as assessed by the CBCL total problem rating scale. Treatment with carnitine significantly decreased the attention problems and aggressive behavior in boys with ADHD.

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