Methods of treating autism, autistic spectrum disorders or Fragile X syndrome comprised of administering molecules that engage the cystine-glutamate exchange (System xc−) and/or elevate the extracellular levels of glutathione in the CNS. Preferred compounds are cysteine/cystine prodrugs or N-acetyl cysteine (NAC) prodrugs.
Use of Compounds Elevating Glutathione Levels for the Treatment of Autism, Autistic Spectrum Disorders and Fragile X Syndrome