Psychotropic drugs simply decrease the symptoms; they do not remove them completely.
The biomedical approach should never be confused with ‘alternative’ medicine. It is just an approach to solve the problem. All the educated people out there would agree to this notion that the biochemical approaches just lessen the frequency of symptoms instead of removing them. So, we should focus more on the basic health problems.
The basic principal is always to eliminate the thing causing the harm and fill the missing fields. Children affected with Autism respond in an exaggerated way to many things. Documents show that they do not have enough enzymes, nutrients, required fatty acids, anti oxidants and the required methylation support (These symptoms may occur in non-autistic people but the approach towards treatment is always similar).