My DS is 16 yo and has classic Autism. He has not been on any medication yet, but we are investigating it currently due to some ADHD type symptoms. We are going through a neuropsychological evaluation for this and then going to a psychiatrist who specializes in developmental disabilities. There have been many times through the years when I wished to put him on some good drugs, but I know the devasting effects many medications can have on people with Autism. There were time when I wished I had some good drugs for myself, too.
I also worked with the developmentally disabled for over 11 years. I would say in many cases of behavioral issues with individuals with Autism the behaviors were much worse when there was communication problems and/or unmet sensory needs. Although my son can talk (and sometimes never shuts up) he cannot communicate to me or anybody else when he feels sick, has a headache, toothache, is hungry, needs a break from an activity, needs to have a hug, etc. You get my drift. So, he acts out in these situations usually by crying or yelling. If you ask my child why he is crying, he will say he is sad. When you ask him why he is sad, he will say he is crying. Everybody that is sad cries.

It is very frustrating. Social stories have helped somewhat but there usually isn't one handy when he is upset that fits his exact situation. Sometimes he will just go to his room in time out, cry and wrap himself up in a blanket until he is calm, or bounce on his therapy ball for an hour.
Environmental changes can help a lot in the home and remaining calm whenever possible. People with Autism can pick up very easily when people are either afraid of them or dislike them. Just simple lighting changes can help tremendously as well as lowering noise levels.
Just MHO from a mom who's been there.
