M.P.
My autistic grandson takes risperdal. He's better focused and somewhat calmer tho he's still a bundle of energy. He's had no negative side effects.
My daughter was against using medication but finally agreed and is glad that she did. My grandson tried a couple of other medications before they found risperdal that works. I don't remember what they were but I'm pretty sure focalin was not one of them,
BTW tantrums are not psychotic episodes. A psychotic episode is one in which the person is not in touch with reality. i.e. they see or hear things that aren't real. They may have delusions about things, happenings or who they are that aren't true. Paranoid delusions or delusions of grandeur are common.
Temper tantrums are the result of frustration and anger and can be exhibited by someone having a psychotic episode but they are just a symptom. People, especially children, have temper tantrums all the time that are not related to a psychosis.
Later: yes Risperdal is an anti-psychotic used to treat schizophrenia and bi-polar, both psychotic disorders, but it's also used to treat irritability in autistic children. An autistic child is not psychotic.