insomnia
"I have had a horrible experience.  It takes several hours to work, and even then, it works only for a short time.  The biggest problem is that it affects one when one is awake.  It stays in your system for hours, after you wake up, wreaking havoc, and giving you a brain fog.  Most horrible medicine.  I don't advise it for anyone.  No positive effects.  Awful side effects."