Anyone have any experience with Vyvanse? difficult child started it on Monday for ADHD. He has tried so many stimulants with no luck whatsoever. Mainly, all he's ever gotten out of them was a bunch of horrible side effects. His new psychiatrist (courtesy of the psychiatric hospital he was in last month), decided he'd like to try one more stimulant. He is also taking Risperdal for hallucinations and delusions. just curious to see what others were saying about this medication. Thanks!