"i do have really bad insomnia (for the past 6 years) but this was prescribed to me for daytime use to help keep me calm. it in no way makes me sleepy but works great for my adhd. i have also gained nearly 10 pounds in only 2 weeks. i&#039;m not a normal eater, usually i only eat dinner, but on this medicine i seem to have doubled what i would normally eat. i&#039;m addressing that issue now. good calming down medicine i must say."