Autism is an infantile disorder of development characterized by deficits in social interaction, communication and unusual and repetitive behavior. Diagnosis is essentially grounded on behavioral tests and there is no pharmacological specific treatment, treatment is merely symptomatic. The aim of this study is to demonstrate the effect of homeopathic remedies on the cognitive and motor development in children with infantile autism. It is presented the evolution of 7 out of 30 children that already were evaluated twice with Psychoeducational Profile Revised (PEP-R), the first was performed before and the second 4-10 months after the onset of homeopathic treatment. Remedies were selected according to similarity between pathogenetic and repertory data and the general symptoms of autism, as well as specific individualization of symptoms in each case, and included organotherapics chosen according to studies related to the brain areas affected by autism. Results showed a positive interference of homeopathic treatment on development and behavior. These results encourage us to continue the study with a larger number of patients.