Lisdexamfetamine
"My 8 year old was diagnosed with ADHD this year.  We tried a non-stimulant first (guanfacine) but it didn't work plus she was soo sleepy on this.  Switched to 30mg of Vyvanse and instantly her grades & school performance increased.  She also plays sports and has improved due to better focus.  We constantly had to yell out into the softball field to "be ready" prior to the medication.  Now, she's always ready to go.  Side effects to begin were insomnia for about 3 days.  Dr. suggested 2mg of melatonin which worked fine.  We did melatonin for 2 days then she was back to falling asleep on her own.  Weight loss is also an issue.  She's down about 6 lbs but she's tall 4' 7" and weighed 94 lbs.  I don't give it to her on the weekend and she eats ok"