After 2+ exhausting years of increasingly bad behaivor from my now 4 year old son, I turned to the internet for help and came across this site and others like it. I read article upon article and researched mood disorders, ADHD, Autism, everything I could come across until I found an article on trantrums that led me to believe that my child's behavior was certainly not normal (not that I didn't already know this) and that I needed to do something more than suffer through it. Here is a link to the article in case anyone is interested - http://children.webmd.com/news/20071219/5-tantrum-red-flags The article led me to look into ODD and I made an appointment with my son's doctor, who after one visit has prescribed him Tenex. He's been on the drug now for 5 days. The biggest side effect that I notice is that he seems tired all the time. He LOOKS tired all the time, eyes half open as though he's fighting to stay awake. The drug seems to act like Superman's kryptonite, comepletely zapping him of his energy and his will to fight back and act out. In some ways the past 5 days have been better. There have been fewer tantrums and there's been less back talk and defiance, but he's just not himself. I feel guilty every time I look at him and his sleepy little face. Does anyone else here have a child on Tenex? What has been your experience?